Patent · US Expired

Production of 4-(m,m'-ditert.-butyl-p-hydroxyphenyl)-butan-2-ones

US4188344A · kind A · utility

0Cited by

5References

6Claims

0Family size

Assignee

BASF SE

Inventors

Roman Fischer · Mutterstadt, DE
Werner Fliege
Wolfgang Koernig · Dossenheim, DE
Bernd Meissner · Heidelberg, DE

Key dates

Filing date	Jan 3, 1978
Grant date	Feb 12, 1980
Priority date	—
Expiry date	Jan 3, 1998

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C45/71
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

4-(m,m'-ditert.-butyl-p-hydroxyphenyl)-butan-2-ones are produced by reaction of a 4-hydroxybutanone-(2) with 2,6-ditert.-butylphenol in the presence of a strong acid at elevated temperature. The compounds obtainable by the process, particularly 4-(m,m'-ditert.-butyl-p-hydroxyphenyl)-butane-2-one, are starting materials for the production of dyes, pest control agents and plastics auxiliaries and particularly of stabilizers for polyolefins and polyamides.

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