Patent · US Active

Process for preparing carboxylic acid esters

US9085526B2 · kind B2 · utility

1Cited by

0References

22Claims

0Family size

Assignee

BASF SE

Inventors

Thomas Schaub · Ludwigshafen, DE
Stefan Rüdenauer · Weinheim, DE
Daniel Schneider · Mannheim, DE
Rocco Paciello · Bad Dürkheim, DE

Key dates

Filing date	Jul 17, 2013
Grant date	Jul 21, 2015
Priority date	—
Expiry date	Sep 18, 2033

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C67/00
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The present invention relates to a process for preparing carboxylic acid esters, comprising the reaction of at least one primary monoalcohol or of a mixture of a primary monoalcohol and at least one alcohol different therefrom in the presence of a transition metal carbene complex catalyst K which has, as central atom M, at least one transition metal atom of group 8, 9 or 10 of the Periodic Table of the Elements (IUPAC) and at least one monodentate N-heterocyclic carbene ligand, in the presence of a base, wherein the catalyst K is prepared by reacting a transition metal compound V which has at least one transition metal atom of group 8, 9 or 10 of the Periodic Table of the Elements (IUPAC), but no carbene ligand, with an imidazolium salt in the presence of the primary monoalcohol and the base, the reaction being carried out without dilution.

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