Patent · US Expired

Process for the manufacture of .alpha.-chloracetoacetamides

US4207259A · kind A · utility

1Cited by

6References

6Claims

0Family size

Assignee

Wacker Chemie AG · DE

Inventors

Gerhard Kunstle
Herbert Jung · Karlstein, DE

Key dates

Filing date	May 25, 1979
Grant date	Jun 10, 1980
Priority date	—
Expiry date	May 25, 1999

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C231/00
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

According to the invention, .alpha.-chloracetoacetamides, which is to be understood as including both .alpha.-chloro-N-monoalkylacetoacetamides and .alpha.-chloro-N,N-dialkylacetoacetamides, the alkyl radicals of which contain 1 to 3 carbon atoms, are produced by reacting the corresponding acetoacetamides with chlorine in aqueous solution at temperatures in the range of from -1.degree. C. to -25.degree. C. At a conversion of at least 95%, a selectivity of at least 97% and a yield of at least 95% of the theoretical yield, calculated on reacted acetoacetamide, are obtained.

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