IL40830A - The preparation of 1,4 dicyanobutenes - Google Patents
The preparation of 1,4 dicyanobutenesInfo
- Publication number
- IL40830A IL40830A IL40830A IL4083072A IL40830A IL 40830 A IL40830 A IL 40830A IL 40830 A IL40830 A IL 40830A IL 4083072 A IL4083072 A IL 4083072A IL 40830 A IL40830 A IL 40830A
- Authority
- IL
- Israel
- Prior art keywords
- tricyanobutane
- basic catalyst
- amine
- dicyanobutene
- reaction
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C253/00—Preparation of carboxylic acid nitriles
- C07C253/30—Preparation of carboxylic acid nitriles by reactions not involving the formation of cyano groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C253/00—Preparation of carboxylic acid nitriles
- C07C253/08—Preparation of carboxylic acid nitriles by addition of hydrogen cyanide or salts thereof to unsaturated compounds
- C07C253/10—Preparation of carboxylic acid nitriles by addition of hydrogen cyanide or salts thereof to unsaturated compounds to compounds containing carbon-to-carbon double bonds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
Claims (2)
- CLAIMS 1. A method of preparing, a 1, 4-dicyanobutene characterized by dehydrocyanating 1, 2 , 4-tricyanobutane .
- 2. A method of preparing a 1 , 4-dicyanobutene characterized by: . a) reacting 2-methylene glutaronitrile with' hydrogen cyanide to form 1 , 2 * 4-tricyanobutane; and b) dehydrocyanating said 1 , 2 , -tricyanobutane to form a 1, 4-dicyanobutene. ·' . 3.' A method according to either of claims 1 and 2 characterized in that the 1, 2 , 4-tricyanobutane is dehydrocyanated at a temperature in the range of 100 to 1000°C . in the presence of a basic catalyst. 4. · . A method according to any one of claims 1 , to 3 , 1 characterized in that 1 , 2 , 4-tricyanobutane is prepared by reacting 2-methyl-ene glutaronitrile with hydrogen cyanide in. the liquid phase at temperatures of 0 to 300°C . and in the presence of a basic catalyst. · . Ί 5. A method according to claim 4 characterized in that the reaction ■ ■ i ■ , ' is carried out at temperatures ranging from 40 to 150e C . j j ' 6. . A method according to either of claims 4 and 5 characterized in ; that the reaction is canied out at temperatures ranging from 50- to 125°C . I ■ ■ ■' _!_ . ■ ' 7. A method according to any one of claims4 o 6 wherein the basic catalyst for the reaction of 2-methylene glutaronitrile is a phosphine or an amine or a compound of the alkali metals; the a lkaline earth rnetals; a ! - 32 - 105 OA 40830/2 lanthanide series; indium; thallium or lead. ; 14. · A methpd according to any one of claims'3 to 12 characterized in that basic catalyst is a heterocyclic amine , an aryl amine , an alkyl amine , a cycloalkyl amine', an arsine, a stibine, or a quaternary ammonium or phosphonium hydroxide. 15.. A method according to claim 13 characterized in that the dehydrocya nation of 1, 2 , 4-tricyanobutane is c irried out in the liquid phase and in the presence of a lithium compound catalyst. I 16. A method according to claim 13.characterized in that the basic catalyst is a trialkyl or cycloalkyl phosphine. i 17. A process according to any one of Claims 2 to; 16 characterized in that the 2-methylene glutaronitrile is prepared by dimerization of acrylonitrile. For the Applicants · DR. KEI HOL COHN AND PARTNERS B j I Λ ■
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US19898771A | 1971-11-15 | 1971-11-15 | |
| US28527272A | 1972-08-31 | 1972-08-31 | |
| US28527172A | 1972-08-31 | 1972-08-31 | |
| US28678472A | 1972-09-06 | 1972-09-06 | |
| US29811572A | 1972-10-16 | 1972-10-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IL40830A0 IL40830A0 (en) | 1973-01-30 |
| IL40830A true IL40830A (en) | 1976-01-30 |
Family
ID=27539397
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IL48000A IL48000A (en) | 1971-11-15 | 1972-11-14 | The preparation of 1,4-dicyanobutenes |
| IL40830A IL40830A (en) | 1971-11-15 | 1972-11-14 | The preparation of 1,4 dicyanobutenes |
| IL48000A IL48000A0 (en) | 1971-11-15 | 1975-08-27 | The preparation of 1,4-dicyanobutenes |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IL48000A IL48000A (en) | 1971-11-15 | 1972-11-14 | The preparation of 1,4-dicyanobutenes |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IL48000A IL48000A0 (en) | 1971-11-15 | 1975-08-27 | The preparation of 1,4-dicyanobutenes |
Country Status (18)
| Country | Link |
|---|---|
| JP (1) | JPS4861423A (en) |
| AR (2) | AR199886A1 (en) |
| AU (1) | AU471821B2 (en) |
| BE (1) | BE791339A (en) |
| CA (1) | CA1001657A (en) |
| CH (2) | CH553165A (en) |
| DD (2) | DD109863A5 (en) |
| DE (3) | DE2265299C3 (en) |
| DK (3) | DK132320C (en) |
| EG (1) | EG10867A (en) |
| FR (1) | FR2161597A5 (en) |
| IE (1) | IE37078B1 (en) |
| IL (3) | IL48000A (en) |
| IT (1) | IT986887B (en) |
| NL (2) | NL162633C (en) |
| NO (1) | NO137938C (en) |
| RO (2) | RO72552A (en) |
| SE (1) | SE405353B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4080374A (en) * | 1977-02-23 | 1978-03-21 | E. I. Du Pont De Nemours And Company | Product recovery |
-
0
- BE BE791339D patent/BE791339A/en not_active IP Right Cessation
-
1972
- 1972-11-12 EG EG465/72A patent/EG10867A/en active
- 1972-11-14 AR AR245114A patent/AR199886A1/en active
- 1972-11-14 NL NL7215387.A patent/NL162633C/en not_active IP Right Cessation
- 1972-11-14 FR FR7240275A patent/FR2161597A5/en not_active Expired
- 1972-11-14 AU AU48833/72A patent/AU471821B2/en not_active Expired
- 1972-11-14 IL IL48000A patent/IL48000A/en unknown
- 1972-11-14 CH CH373874A patent/CH553165A/en not_active IP Right Cessation
- 1972-11-14 CH CH1655672A patent/CH551951A/en not_active IP Right Cessation
- 1972-11-14 IL IL40830A patent/IL40830A/en unknown
- 1972-11-14 NO NO724134A patent/NO137938C/en unknown
- 1972-11-14 CA CA156,329A patent/CA1001657A/en not_active Expired
- 1972-11-14 DK DK565072A patent/DK132320C/en active
- 1972-11-14 DD DD176199*A patent/DD109863A5/xx unknown
- 1972-11-14 DD DD173192*A patent/DD106367A5/xx unknown
- 1972-11-14 IE IE1566/72A patent/IE37078B1/en unknown
- 1972-11-15 IT IT54031/72A patent/IT986887B/en active
- 1972-11-15 DE DE2265299A patent/DE2265299C3/en not_active Expired
- 1972-11-15 RO RO7287241A patent/RO72552A/en unknown
- 1972-11-15 JP JP47114655A patent/JPS4861423A/ja active Pending
- 1972-11-15 DE DE2256039A patent/DE2256039C3/en not_active Expired
- 1972-11-15 DE DE2264932A patent/DE2264932C3/en not_active Expired
- 1972-11-15 RO RO7272824A patent/RO72799A/en unknown
-
1973
- 1973-10-31 AR AR250788A patent/AR198539A1/en active
-
1974
- 1974-11-13 DK DK590074A patent/DK590074A/da unknown
- 1974-11-13 DK DK589974A patent/DK589974A/da unknown
-
1975
- 1975-05-22 SE SE7505822A patent/SE405353B/en unknown
- 1975-08-27 IL IL48000A patent/IL48000A0/en unknown
-
1979
- 1979-09-24 NL NL7907083A patent/NL7907083A/en not_active Application Discontinuation
Also Published As
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FI88802C (en) | Oligomerization to alpha olefins | |
| ES3037196T3 (en) | Olefin oligomerisation process with a catalyst comprising a chromium complex with a phosphacycle-containing ligand | |
| IL40830A (en) | The preparation of 1,4 dicyanobutenes | |
| ES411568A1 (en) | Process for producing microcapsules | |
| Kaas | The crystal structure of meso-di-μ-hydroxobis [bis (ethylenediamine) chromium (III)] diperchlorate dichloride dihydrate | |
| GB831328A (en) | Process for the production of novel addition products from aluminium hydrocarbons and acetylene or acetylene derivatives | |
| CH609044A5 (en) | Process for the preparation of alcanolactams from the corresponding oximes | |
| ES423733A1 (en) | Process for the preparation of bimetallic salt complexes | |
| ES430278A1 (en) | PROCEDURE FOR OBTAINING PYRAZOLIUM COMPOUNDS. | |
| GB1217977A (en) | A process for the preparation of diorganochlorophosphines | |
| Leeaphon et al. | Synthesis and structural characterization of eight-coordinate geometrical isomers of [ReH2 (mhp) 2 (PPh3) 2] PF6 that retain their structural identity in solution | |
| GB1167918A (en) | Preparation of Hydrocarbon Thioalkylene Phosphites | |
| GB1482016A (en) | Epitaxial deposition of semiconductor material | |
| GB1469773A (en) | Catalytic hydrocracking with a catalyst system comprising a metal halide and a compound serving as a proton source to the catalyst system | |
| GB1442434A (en) | Process for preparing conjugated diolefins | |
| GB1003090A (en) | Process for the production of n,n,n-triorgano-substituted borazoles | |
| ES409360A1 (en) | Process for the production of mercaptoethyl containing compounds | |
| ES416476A1 (en) | Process for the conversion of penicillin S-oxide into a corresponding desatoxycephalosporin | |
| GB932530A (en) | Penicillins | |
| JPS52111536A (en) | Preparation of alpha-phenylpropionic acid derivatives | |
| SE8304837D0 (en) | PROCEDURE FOR THE PREPARATION OF NEW OPTICALLY ACTIVE SOCIETIES | |
| GB911284A (en) | Process for the manufacture of primary phosphines | |
| GB1088333A (en) | Process for preparing quaternary phosphonium compounds | |
| GB1470945A (en) | Production of cyclic carbonyl compounds | |
| FR2163827A5 (en) | Dialkyl 1-pyridylvinyl phosphates - with antiparasitic activity |