Patent · US Expired

Preparation of diacyloxybutenes

US4504676A · kind A · utility

2Cited by

4References

9Claims

0Family size

Assignee

BASF SE

Inventors

Rolf Schnabel · Schifferstadt, DE
Gerd Kissau · Munster, DE
Hans-Martin Weitz · Bad Dürkheim, DE
Rolf Fischer · Heidelberg, DE

Key dates

Filing date	Mar 9, 1984
Grant date	Mar 12, 1985
Priority date	—
Expiry date	Mar 9, 2004

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C67/54
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

1,4-diacyloxybutenes are prepared by reacting a 1,3-butadiene with a carboxylic acid and oxygen in the presence of a catalyst in a reactor, by a process in which the 3,4-diacyloxybutene formed as a by-product in the reaction is separated off from the reaction mixture, and some or all of this 3,4-diacyloxybutene is recycled to the reactor.

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