Patent · US Expired

Method for the production of 2,3-cis-substituted 2-aryl propenals

US7276632B2 · kind B2 · utility

1Cited by

2References

20Claims

0Family size

Assignee

BASF SE

Inventors

Rainer Noack · Bietigheim, DE
Lothar Rub · Speyer, DE
Clemens Palm · Dresden, DE

Key dates

Filing date	Dec 14, 2004
Grant date	Oct 2, 2007
Priority date	—
Expiry date	Dec 14, 2024

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C45/74
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The invention relates to a method for producing 2,3-cis-substituted 2-aryl propenals by condensing a 2-aryl acetaldehyde I with a non-enolizable aldehyde compound II in the presence of a base. The inventive method is characterized in that the reaction is carried out in a solvent mixture comprising at least one water-miscible organic solvent and water at a volume ratio Vsolvent:Vwater ranging between 10:1 and 0.5:1.

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