ES8102088A1 - Procedimiento para la obtencion de esteres de acido ortocar-boxilico - Google Patents
Procedimiento para la obtencion de esteres de acido ortocar-boxilicoInfo
- Publication number
- ES8102088A1 ES8102088A1 ES492146A ES492146A ES8102088A1 ES 8102088 A1 ES8102088 A1 ES 8102088A1 ES 492146 A ES492146 A ES 492146A ES 492146 A ES492146 A ES 492146A ES 8102088 A1 ES8102088 A1 ES 8102088A1
- Authority
- ES
- Spain
- Prior art keywords
- catalysts
- utilization
- preparation
- amino groups
- tertiary amino
- 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.)
- Expired
Links
- 150000002905 orthoesters Chemical class 0.000 title abstract 2
- 239000003054 catalyst Substances 0.000 title 1
- 125000001302 tertiary amino group Chemical group 0.000 title 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 abstract 3
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 abstract 2
- -1 preferably H Chemical group 0.000 abstract 2
- 125000004178 (C1-C4) alkyl group Chemical group 0.000 abstract 1
- 125000004169 (C1-C6) alkyl group Chemical group 0.000 abstract 1
- 125000004070 6 membered heterocyclic group Chemical group 0.000 abstract 1
- 125000003118 aryl group Chemical group 0.000 abstract 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/16—Catalysts
- C08G18/18—Catalysts containing secondary or tertiary amines or salts thereof
- C08G18/1833—Catalysts containing secondary or tertiary amines or salts thereof having ether, acetal, or orthoester groups
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyurethanes Or Polyureas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
Abstract
PROCEDIMIENTO PARA LA OBTENCION DE ESTERES DE ACIDO CARBOXILICO. LOS COMPUESTOS A OBTENER SON LOS DE FORMULA (I), DONDE R ES HIDROGENO, ALQUILO, O ARILO; R ELEVADO A I R ELEVADO A II SON HIDROGENO O ALQUILO; R ELEVADO A III Y R ELEVADO A IV SON ALQUILO, Y N ES UN NUMERO ENTRE 1 Y 5. EL PROCEDIMIENTO DE OBTENCION SE BASA EN LA RESTERIFICACION DE ESTERES DE TRIALQUILO DE ACIDO CARBOXILICO, CON AMINOALCOHOLES N,N-DISUSTITUIDOS DE FORMULA (II), DONDE R ELEVADO A I, R ELEVADO A II, R ELEVADO A III, R ELEVADO A IV Y N TIENEN LOS SIGNIFICADOS ANTERIORMENTE INDICADOS, EN PRESENCIA DE UN ACIDO. DICHA REACCION TRANSCURRE A UNA TEMPERATURA SUPERIOR A LA DEL PUNTO DE EBULLICION DEL COMPONENTE ALCOHOL DEL ESTER DE ACIDO ORTOCARBOXILICO EMPLEADO, A PRESION NORMAL O EN VACIO. EL ALCOHOL QUE SE FORMA DURANTE LA REACCION SE SEPARA EN FORMA CONTINUA POR DESTILACION. ESTOS COMPUESTOS SON EMPLEADOS COMO CATALIZADORES PARA LA OBTENCION DE POLIURETANOS. *FORMULA*
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19792922967 DE2922967A1 (de) | 1979-06-06 | 1979-06-06 | Tert. aminogruppen aufweisende orthocarbonsaeureester, ihre herstellung und verwendung als katalysatoren |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ES492146A0 ES492146A0 (es) | 1980-12-16 |
| ES8102088A1 true ES8102088A1 (es) | 1980-12-16 |
Family
ID=6072612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES492146A Expired ES8102088A1 (es) | 1979-06-06 | 1980-06-04 | Procedimiento para la obtencion de esteres de acido ortocar-boxilico |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0021079A1 (es) |
| JP (1) | JPS55164659A (es) |
| DE (1) | DE2922967A1 (es) |
| ES (1) | ES8102088A1 (es) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4477362A (en) * | 1981-03-18 | 1984-10-16 | The Lubrizol Corporation | Method for preparing nitrogen- and oxygen-containing compositions _useful as lubricant and fuel additives |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2009918B2 (de) * | 1969-03-03 | 1979-03-29 | Texaco Development Corp., New York, N.Y. (V.St.A.) | Tertiäre Polyoxyalkylenpolyamine bzw. -amingemische und deren Verwendung |
| US3879465A (en) * | 1972-08-01 | 1975-04-22 | Ibrahim S Bechara | Amino orthoesters |
-
1979
- 1979-06-06 DE DE19792922967 patent/DE2922967A1/de not_active Withdrawn
-
1980
- 1980-05-27 EP EP80102946A patent/EP0021079A1/de not_active Withdrawn
- 1980-06-04 ES ES492146A patent/ES8102088A1/es not_active Expired
- 1980-06-04 JP JP7445280A patent/JPS55164659A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE2922967A1 (de) | 1980-12-11 |
| ES492146A0 (es) | 1980-12-16 |
| EP0021079A1 (de) | 1981-01-07 |
| JPS55164659A (en) | 1980-12-22 |
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