Title:
PRODUCTION OF N-@(3754/24)ALPHA-ALKOXYETHYL)FORMAMIDE
Document Type and Number:
Japanese Patent JP3182946
Kind Code:
B2
Abstract:
PURPOSE: To reduce the amount of a catalyst used and efficiently obtain an N-(α-alkoxyethyl)formamide good in thermal stability by regulating diformamide in formamide used as a raw material to a prescribed content or below, then reacting the prepared formamide with acetaldehyde and further reacting the resultant compound with an alcohol.
CONSTITUTION: Formamide is made to react with acetaldehyde in the presence of a basic catalyst to provide N-(α-hydroxyethyl)formamide, which is then allowed to react with a primary or a secondary alcohol in the presence of an acidic catalyst to afford an N-(α-alkoxyethyl)formamide. Formamide with ≤1000 wt.ppm, preferably ≤500wt.ppm content of the diformamide in the formamide is used as the raw material. Furthermore, acetaldehyde with $ 300 wt. ppm content of acetic acid is preferably used as the raw material. The formamide purified by vacuum distillation using a column is especially preferably used as the raw material. The N-(α-alkoxyethyl)formamide obtained by this method is preferably purified by the vacuum distillation using a column.
Inventors:
Shinichi Sato
Seiji Kuma
Toshiaki Sakakibara
Seiji Kuma
Toshiaki Sakakibara
Application Number:
JP33452892A
Publication Date:
July 03, 2001
Filing Date:
December 15, 1992
Export Citation:
Assignee:
Mitsubishi Chemical Corporation
International Classes:
B01J23/02; B01J27/04; B01J27/08; B01J27/25; B01J31/02; B01J31/04; B01J31/08; C07B61/00; C07C231/08; C07C233/18; (IPC1-7): C07C231/08; B01J23/02; B01J27/04; B01J31/02; C07C233/18
Domestic Patent References:
| JP61286356A | ||||
| JP62289549A |
Attorney, Agent or Firm:
Koji Hasegawa