Patent · US Expired

Preparation of alkyl cyanoacetates

US5756807A · kind A · utility

2Cited by

2References

8Claims

0Family size

Assignee

BASF SE

Inventors

Clemens Grund · Hattersheim, DE
Martin Holderbaum · Ludwigshafen, DE
Helmut Reichelt · Neustadt, DE
Stefan Beckmann · Mannheim, DE

Key dates

Filing date	Oct 21, 1996
Grant date	May 26, 1998
Priority date	—
Expiry date	Oct 21, 2016

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C253/30
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

A process for preparing alkyl cyanoacetates of the general formula I ##STR1## where R is an n-valent aliphatic radical which has 6 to 20 carbon atoms and whose carbon framework can be interrupted by one to three oxygen atoms in ether functionality, and n is a number from 1 to 6, by reacting cyanoacetic acid in aqueous medium with an alcohol R(OH).sub.n, where the esterification is carried out in the presence of an inert entrainer and, during the reaction, water and entrainer are distilled out.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.