WO2001070649A1 - Verfahren zur reduktion organischer verbindungen mittels hydriden und/oder deren derivaten in einem mikroreaktor - Google Patents
Verfahren zur reduktion organischer verbindungen mittels hydriden und/oder deren derivaten in einem mikroreaktor Download PDFInfo
- Publication number
- WO2001070649A1 WO2001070649A1 PCT/EP2001/002302 EP0102302W WO0170649A1 WO 2001070649 A1 WO2001070649 A1 WO 2001070649A1 EP 0102302 W EP0102302 W EP 0102302W WO 0170649 A1 WO0170649 A1 WO 0170649A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- derivative
- microreactor
- hydride
- boranate
- compounds
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D233/00—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings
- C07D233/54—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members
- C07D233/64—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members with substituted hydrocarbon radicals attached to ring carbon atoms, e.g. histidine
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0093—Microreactors, e.g. miniaturised or microfabricated reactors
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
- C07B31/00—Reduction in general
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
- C07B41/00—Formation or introduction of functional groups containing oxygen
- C07B41/02—Formation or introduction of functional groups containing oxygen of hydroxy or O-metal groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/132—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of an oxygen containing functional group
- C07C29/136—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of an oxygen containing functional group of >C=O containing groups, e.g. —COOH
- C07C29/147—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of an oxygen containing functional group of >C=O containing groups, e.g. —COOH of carboxylic acids or derivatives thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00781—Aspects relating to microreactors
- B01J2219/00873—Heat exchange
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00781—Aspects relating to microreactors
- B01J2219/0095—Control aspects
- B01J2219/00984—Residence time
Definitions
- the present invention relates to a / experienced in the reduction of aliphatic, aromatic or heterocyclic organic compounds by means of hydrides and / or their derivatives.
- the object of the present invention is therefore to provide a process for reducing aliphatic, aromatic or heterocyclic organic compounds by means of hydrides and / or their derivatives, which avoids the disadvantages mentioned above.
- This process should in particular be able to be carried out in a simple, reproducible manner with increased safety for humans and the environment and with good yields, the reaction conditions should be very easy to control and those for It should be possible to implement the protective gas conditions necessary for the reaction without great technical outlay.
- This object is surprisingly achieved by the process according to the invention for reducing aliphatic, aromatic or heterocyclic organic compounds by means of hydrides and / or their derivatives, in which at least one organic compound in liquid or dissolved form with at least one hydride and / or its derivative in liquid or dissolved form is mixed in at least one microreactor, reacts during a residence time and the reduced organic compound is optionally isolated from the reaction mixture.
- an aliphatic, aromatic or heterocyclic organic compound or a mixture of at least two of these compounds is reduced by the claimed process.
- an aliphatic, aromatic or heterocyclic organic compound is used in the process according to the invention.
- a microreactor in the sense of the invention is a reactor with a volume ⁇ 1000 ⁇ l in which the liquids and / or solutions are intimately mixed at least once.
- the volume of the reactor is preferably ⁇ 100 ⁇ l, particularly preferably ⁇ 50 ⁇ l.
- the microreactor is preferably produced from thin, interconnected silicon structures.
- the microreactor is preferably a miniaturized flow reactor, particularly preferably a static micromixer.
- the microreactor is a static micromixer as described in the patent application with the international publication number WO 96/301 13, which is hereby introduced as a reference and is considered part of the disclosure.
- Such a microreactor has small channels in which liquids and / or chemical compounds present in solutions are mixed with one another by the kinetic energy of the flowing liquids and / or solutions.
- the channels of the microreactor preferably have a diameter of 10 to 1000 ⁇ m, particularly preferably 20 to 800 ⁇ m and very particularly preferably 30 to 400 ⁇ m.
- the liquids and / or solutions are preferably pumped into the microreactor in such a way that they flow through them at a flow rate of 0.01 ⁇ l / min to 100 ml / min, particularly preferably 1 ⁇ l / min to 1 ml / min.
- the microreactor can preferably be tempered.
- the microreactor is preferably connected via an outlet to at least one retention zone, preferably a capillary, particularly preferably a temperature-controlled capillary.
- the liquids and / or solutions are passed into this residence zone or capillary after they have been mixed in the microreactor in order to extend their residence time.
- the residence time in the sense of the invention is the time between the mixing of the starting materials and the working up of the resulting reaction solution for the analysis or isolation of the desired product (s).
- the required residence time in the process according to the invention depends on various parameters, such as, for example, the temperature or the reactivity of the starting materials. It is possible for the person skilled in the art to adapt the dwell time to these various parameters and thus to achieve an optimal course of the reaction.
- the residence time of the reaction solution in the system used can be set by selecting the flow rate of the liquids and / or solutions used.
- the reaction mixture is likewise preferably passed through two or more microreactors connected in series. This ensures that the residence time is extended even at an increased flow rate and the components used in the reduction reaction are reacted in such a way that an optimal product yield of the desired reduced organic compound (s) is achieved.
- reaction mixture is passed through two or more microreactors arranged in parallel in order to increase the throughput.
- the number and the arrangement of the channels in one or more microreactor (s) are varied in such a way that the residence time is increased, so that here, too, an optimal yield of the desired product is reduced at an increased flow rate organic compound (s) is achieved.
- the residence time of the reaction solution in the microreactor if appropriate in the microreactor and the residence zone, is preferably ⁇ 15 hours, particularly preferably ⁇ 3 hours, very particularly preferably ⁇ 1 hour.
- the process according to the invention can be carried out in a very wide temperature range, which is essentially due to the temperature resistance of the microreactor, optionally the residence zone, and other constituents, such as e.g. Connections and seals, materials used and limited by the physical properties of the solutions and / or liquids used.
- the process according to the invention is preferably carried out at a temperature of from -100 to +250 ° C., particularly preferably from -78 to +150 ° C. and very particularly preferably from 0 to +40 ° C.
- the process according to the invention can be carried out either continuously or batchwise. It is preferably carried out continuously.
- the course of the reduction reaction in the process according to the invention can be followed and optionally regulated using various analytical methods known to the person skilled in the art.
- the course of the reaction is preferably followed by chromatography, particularly preferably by gas chromatography and / or by high pressure liquid chromatography, and, if appropriate, regulated.
- the control of the reaction is included the method according to the invention significantly improved compared to known methods.
- the reduced organic compounds are optionally isolated.
- the reduced product (s) is (are) after working up the reaction mixture, e.g. isolated from the reaction mixture by acidification with hydrochloric acid, optionally neutralization and subsequent extraction with a suitable solvent. Extraction is particularly preferably carried out with an organic solvent.
- Aliphatic, aromatic or heterocyclic organic compounds which can be used in the process according to the invention are all aliphatic, aromatic or heterocyclic organic compounds known to the person skilled in the art as substrates for reductions by means of hydrides and / or their derivatives.
- Preferred aliphatic, aromatic or heterocyclic organic compounds are aliphatic, aromatic or heterocyclic carbonyl compounds, such as aldehydes and ketones, carboxylic acids, carboxylic acid halides, carboxylic acid esters, corresponding thio- or selenium analogues of the abovementioned compounds, nitriles, halides or azides.
- aliphatic carbonyl compounds carboxylic acids, carboxylic acid halides, carboxylic acid esters, corresponding thio- or selenium analogues of the above-mentioned compounds, nitriles, halides or azides, all aliphatic compounds of the above-mentioned substance classes known to the person skilled in the art can be used, which are suitable as substrates for reductions by means of hydrides and / or their derivatives are suitable.
- There are also straight-chain, branched, saturated and unsaturated Connections includes.
- Aromatic carbonyl compounds carboxylic acids, carboxylic acid halides, carboxylic acid esters, corresponding thio- or selenium analogues of the abovementioned compounds, nitriles, halides or azides, all aromatic compounds of the substance classes listed above which are known to the person skilled in the art can be used, which can be used as a substrate for reductions by means of hydrides and / or their derivatives are suitable.
- compounds and / or derivatives are therefore also included which have a monocyclic and / or polycyclic homoaromatic backbone or a corresponding partial structure, e.g. in the form of substituents.
- heterocyclic carbonyl compounds carboxylic acids, carboxylic acid halides, carboxylic acid esters, corresponding thio- or selenium analogues of the above-mentioned compounds, nitriles, halides or azides, all heterocyclic compounds of the above-mentioned substance classes known to the person skilled in the art can be used, which are suitable as substrates for reductions by means of hydrides and / or their derivatives are suitable and contain at least one heteroatom.
- Heterocyclic compounds within the meaning of the invention also include heterocyclic compounds and / or their derivatives which have at least one monocyclic and / or polycyclic heterocyclic backbone or a corresponding partial structure, e.g. in the form of substituents.
- the term "heterocyclic" also includes saturated, unsaturated and heteroaromatic compounds. Heterocyclic backbones or partial structures particularly preferably comprise at least one oxygen, nitrogen or sulfur atom.
- reducing agents known to those skilled in the art for reducing aliphatic, aromatic or heterocyclic organic compounds suitable hydrides and / or their derivatives are used. At least one compound selected from boron, aluminum, tin, silicon hydrides, their derivatives or a mixture of these reducing agents is preferably used as the hydride or its derivative. Only one hydride or derivative is preferably used as the reducing agent in the process according to the invention.
- a derivative of a hydride in the sense of the invention is a structurally analogous compound in which at least one hydrogen atom has been replaced by a radical other than hydrogen, but at least one hydrogen atom is still present.
- borohydride or its derivative is preferably lithium borohydride, sodium borohydride, potassium, Rubidiumboranat, Cäsiumboranat borohydride, zinc borohydride, Calciumboranat, Kupferboranat, tetra-alkylammoniumboranat, tri-or tri-alkylphosphoniumboranat arylphosphoniumboranat, or alkyl, aryl, alkoxy, aryloxy, acyloxy -, Cyano- or heteroaryl derivatives of boranates or a mixture of the above-mentioned compounds.
- borohydride or its derivative is a borane, in particular diborane, or alkyl, aryl, alkoxy, aryloxy, acyloxy or heteroaryl derivatives of boranes, complexes of boranes or the above derivatives with amines, phosphines, ethers or sulfides as ligands, the ligands each being the same or different or using a mixture of the above-mentioned compounds.
- Aluminum hydride or its derivative are preferably aluminum hydrogen (AIH 3 ), complex aluminum hydrides, in particular lithium alanate, sodium alanate, potassium alanate, or alkyl, aryl, alkoxy, aryloxy or acyloxy derivatives of hydrogen aluminum or alanates, for example Na bis (2 - Methoxyethoxy) aluminum hydride or di-isobutylaluminium hydride used. Also preferred are complexes of hydrogen aluminum, alanates or the above derivatives with amines, phosphines, ethers or Sulfides as ligands, where the ligands can each be the same or different, or a mixture of the compounds mentioned above.
- AIH 3 aluminum hydrogen
- complex aluminum hydrides in particular lithium alanate, sodium alanate, potassium alanate, or alkyl, aryl, alkoxy, aryloxy or acyloxy derivatives of hydrogen aluminum or alanates, for example Na bis (2 -
- Preferred silicon hydrides or their derivatives include silanes, in particular monosilane, or alkyl, aryl, alkoxy, aryloxy, acyloxy, cyano or heteroaryl derivatives of the stianes or a mixture of the compounds mentioned above.
- Examples of preferred tin hydrides or their derivatives include stannanes, in particular monostannan, or alkyl, aryl, alkoxy, aryloxy, acyloxy, cyano or heteroaryl derivatives of the stannanes or a mixture of the compounds mentioned above.
- Alkenes and alkynes can be inserted into the B -H bonds of boranes.
- the hydrolysis or peroxohydrolysis of the organylboranes formed in these hydroboration leads to hydrocarbons or alcohols. It must therefore be taken into account that these hydroboronations can also occur in the case of unsaturated compounds which are to be reduced according to the invention if boranes and / or derivatives of the boranes are used as reducing agents.
- the molar ratio of organic compound to hydride and / or its derivative in the process according to the invention depends on the reactivity of the organic compounds, hydrides and / or derivatives used.
- the hydride and / or its derivative is preferably used in an excess> 1, or equimolar, with respect to the organic compound.
- the selectivity of the reaction itself depends not only on the concentration of the reagents used but also on a number of other parameters, such as the temperature, the type of reducing agent used or the residence time. It is possible for the person skilled in the art to adapt the various parameters to the respective reduction reaction in such a way that the desired reduced product (s) is (are) obtained.
- Aromatic solvents are preferred as solvents, particularly preferably toluene, xylenes, ligroin or phenyl ether, straight-chain, branched or cyclic paraffins, particularly preferably pentane, hexane, heptane, octane, cyclopentane, cyclohexane, cycloheptane or cyclooctane or straight-chain, branched or cyclic ethers, particularly preferably diethyl ether, methyl tert-butyl ether, tetrahydrofuran or dioxane, or mixtures of these solvents.
- the risk to humans and the environment from escaping chemicals is considerably reduced and thus leads to increased safety when handling hazardous substances.
- the reduction of aliphatic, aromatic or heterocyclic organic compounds by the process according to the invention also enables better control of the reaction conditions, such as reaction time and reaction temperature, than is possible in the conventional processes.
- the temperature can be individually selected and kept constant in each volume element of the system.
- the course of the reduction reaction can be regulated very quickly and precisely in the process according to the invention. Shielding gas conditions are very easy to implement and maintained. The reduced organic products can thus be obtained in very good and reproducible yields.
- DIBAL-H diisobutyl aluminum hydride
- the static micromixer was connected via an outlet and an Omnifit medium pressure HPLC connection component (Omnifit, Great Britain) to a Teflon capillary with an inner diameter of 0.49 mm and a length of 1.0 m.
- the reaction was carried out at room temperature.
- the experimental set-up was calibrated for the dependence of the residence time on the pump flow rate before the reaction was carried out.
- the dwell time was set to 30, 15, 7.5 or 3.75 minutes.
- the reactions were followed using a Hewlett-Packard GC-MS or a Merck Hitachi LaChrom HPLC instrument.
- the resulting reaction mixture was acidified with 1N HCl and extracted with ethyl acetate. The organic extract was then dried over magnesium sulfate and the solvent was removed in vacuo.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001568863A JP2003528061A (ja) | 2000-03-23 | 2001-03-01 | 有機化合物を微小反応器中で水素化物および/またはその誘導体により還元するための方法 |
| EP01919358A EP1265828A1 (de) | 2000-03-23 | 2001-03-01 | Verfahren zur reduktion organischer verbindungen mittels hydriden und/oder deren derivaten in einem mikroreaktor |
| US10/239,393 US7179925B2 (en) | 2000-03-23 | 2001-03-01 | Method for reducing organic compounds in microreactor by means of hydrides and/or the derivatives thereof |
| AU2001246488A AU2001246488A1 (en) | 2000-03-23 | 2001-03-01 | Method for reducing organic compounds in a microreactor by means of hydrides and/or the derivatives thereof |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10014298.2 | 2000-03-23 | ||
| DE10014298A DE10014298A1 (de) | 2000-03-23 | 2000-03-23 | Verfahren zur Reduktion aliphatischer, aromatischer oder heterocyclischer organischer Verbindungen mittels Hydriden und/oder deren Derivaten |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2001070649A1 true WO2001070649A1 (de) | 2001-09-27 |
Family
ID=7635957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2001/002302 Ceased WO2001070649A1 (de) | 2000-03-23 | 2001-03-01 | Verfahren zur reduktion organischer verbindungen mittels hydriden und/oder deren derivaten in einem mikroreaktor |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US7179925B2 (de) |
| EP (1) | EP1265828A1 (de) |
| JP (1) | JP2003528061A (de) |
| AU (1) | AU2001246488A1 (de) |
| DE (1) | DE10014298A1 (de) |
| WO (1) | WO2001070649A1 (de) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008017558A1 (de) * | 2006-08-10 | 2008-02-14 | Evonik Degussa Gmbh | Anlage und verfahren zur kontinuierlichen industriellen herstellung von 3-chlorpropylchlorsilanen |
| WO2008017553A1 (de) * | 2006-08-10 | 2008-02-14 | Evonik Degussa Gmbh | Anlage und verfahren zur kontinuierlichen industriellen herstellung von fluoralkylchlorsilanen |
| WO2008017552A1 (de) * | 2006-08-10 | 2008-02-14 | Evonik Degussa Gmbh | Anlage, reaktor und verfahren zur kontinuierlichen industriellen herstellung von polyetheralkylalkoxysilanen |
| WO2008017561A1 (de) * | 2006-08-10 | 2008-02-14 | Evonik Degussa Gmbh | Anlage und verfahren zur kontinuierlichen industriellen herstellung von 3-glycidyloxypropylalkoxysilanen |
| WO2008017554A1 (de) * | 2006-08-10 | 2008-02-14 | Evonik Degussa Gmbh | Anlage, reaktor und verfahren zur kontinuierlichen industriellen herstellung von 3-methacryloxypropylalkoxysilanen |
| WO2008017562A1 (de) * | 2006-08-10 | 2008-02-14 | Evonik Degussa Gmbh | Anlage und verfahren zur kontinuierlichen industriellen herstellung von alkylalkoxysilanen |
| WO2008017555A1 (de) * | 2006-08-10 | 2008-02-14 | Evonik Degussa Gmbh | Anlage und verfahren zur kontinuierlichen industriellen herstellung von organosilanen |
| WO2009003661A1 (en) * | 2007-06-29 | 2009-01-08 | Lonza Ltd | Process for the preparation of aldehydes |
| WO2012147900A1 (en) | 2011-04-28 | 2012-11-01 | Eisai R&D Management Co., Ltd. | Microreactor process for halichondrin b analog synthesis |
| WO2013038206A1 (en) * | 2011-09-15 | 2013-03-21 | The University Of Warwick | A process |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117138839A (zh) * | 2023-08-30 | 2023-12-01 | 成都药明康德新药开发有限公司 | 一种以二异丁基氢化铝还原羧酸到醇的流动化学方法 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999022857A1 (en) * | 1997-11-05 | 1999-05-14 | British Nuclear Fuels Plc | A method of performing a chemical reaction |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5091595A (en) * | 1989-06-07 | 1992-02-25 | Choi Young M | Reduction of diethyl phenylmalonate to 2-phenyl-1,3-propanediol |
-
2000
- 2000-03-23 DE DE10014298A patent/DE10014298A1/de not_active Withdrawn
-
2001
- 2001-03-01 EP EP01919358A patent/EP1265828A1/de not_active Ceased
- 2001-03-01 JP JP2001568863A patent/JP2003528061A/ja active Pending
- 2001-03-01 WO PCT/EP2001/002302 patent/WO2001070649A1/de not_active Ceased
- 2001-03-01 US US10/239,393 patent/US7179925B2/en not_active Expired - Fee Related
- 2001-03-01 AU AU2001246488A patent/AU2001246488A1/en not_active Abandoned
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999022857A1 (en) * | 1997-11-05 | 1999-05-14 | British Nuclear Fuels Plc | A method of performing a chemical reaction |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008017558A1 (de) * | 2006-08-10 | 2008-02-14 | Evonik Degussa Gmbh | Anlage und verfahren zur kontinuierlichen industriellen herstellung von 3-chlorpropylchlorsilanen |
| WO2008017553A1 (de) * | 2006-08-10 | 2008-02-14 | Evonik Degussa Gmbh | Anlage und verfahren zur kontinuierlichen industriellen herstellung von fluoralkylchlorsilanen |
| WO2008017552A1 (de) * | 2006-08-10 | 2008-02-14 | Evonik Degussa Gmbh | Anlage, reaktor und verfahren zur kontinuierlichen industriellen herstellung von polyetheralkylalkoxysilanen |
| WO2008017561A1 (de) * | 2006-08-10 | 2008-02-14 | Evonik Degussa Gmbh | Anlage und verfahren zur kontinuierlichen industriellen herstellung von 3-glycidyloxypropylalkoxysilanen |
| WO2008017554A1 (de) * | 2006-08-10 | 2008-02-14 | Evonik Degussa Gmbh | Anlage, reaktor und verfahren zur kontinuierlichen industriellen herstellung von 3-methacryloxypropylalkoxysilanen |
| WO2008017562A1 (de) * | 2006-08-10 | 2008-02-14 | Evonik Degussa Gmbh | Anlage und verfahren zur kontinuierlichen industriellen herstellung von alkylalkoxysilanen |
| WO2008017555A1 (de) * | 2006-08-10 | 2008-02-14 | Evonik Degussa Gmbh | Anlage und verfahren zur kontinuierlichen industriellen herstellung von organosilanen |
| WO2009003661A1 (en) * | 2007-06-29 | 2009-01-08 | Lonza Ltd | Process for the preparation of aldehydes |
| WO2012147900A1 (en) | 2011-04-28 | 2012-11-01 | Eisai R&D Management Co., Ltd. | Microreactor process for halichondrin b analog synthesis |
| WO2013038206A1 (en) * | 2011-09-15 | 2013-03-21 | The University Of Warwick | A process |
Also Published As
| Publication number | Publication date |
|---|---|
| US20040225157A1 (en) | 2004-11-11 |
| DE10014298A1 (de) | 2001-09-27 |
| US7179925B2 (en) | 2007-02-20 |
| EP1265828A1 (de) | 2002-12-18 |
| JP2003528061A (ja) | 2003-09-24 |
| AU2001246488A1 (en) | 2001-10-03 |
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