Patent · US Expired

Process for the manufacture of cyanohydrin acylates of aldehydes

US4336206A · kind A · utility

5Cited by

0References

16Claims

0Family size

Assignee

Hoechst GmbH · DE

Inventors

Rainer Mundnich · Frankfurt am Main, DE
Manfred Finke
Walter Rupp
Klaus Dehmer · Kelkheim, DE

Key dates

Filing date	May 15, 1980
Grant date	Jun 22, 1982
Priority date	—
Expiry date	May 15, 2000

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C255/00
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Cyanohydrin acylates of aldehydes are manufactured by reacting aldehydes with aqueous solutions of cyanides and organic acid chlorides or anhydrides in the molar ratio of aldehyde:cyanide:acid chloride or anhydride of 1:1:1 with deviations of at most only about 10%, optionally in the presence of an inert organic solvent immiscible with water in a one-stage process. The process products are intermediates mainly in the fields of pharmaceuticals and plant protection.

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