Patent · US Expired

Preparation of alpha-substituted .beta.-dicarbonyl, .beta.-cyano-carbonyl and .beta.-dicyano compounds

US4684743A · kind A · utility

2Cited by

1References

7Claims

0Family size

Assignee

BASF SE

Inventors

Walter Gramlich · Edingen-Neckarhausen, DE
Klaus Halbritter · Heidelberg, DE
Gerd Heilen · Speyer, DE

Key dates

Filing date	Oct 1, 1985
Grant date	Aug 4, 1987
Priority date	—
Expiry date	Oct 1, 2005

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C49/403
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

.beta.-Dicarbonyl, .beta.-cyanocarbonyl and .beta.-dicyano compounds I ##STR1## where R.sup.1 is an organic radical, X and Y are COOR.sup.2, --CO--R.sup.2 or --CN and R.sup.2 is an organic radical, are prepared from R.sup.1 --CHO (II) and X--CH.sub.2 --Y (III) by reaction in the presence of a condensation catalyst, hydrogen and a hydrogenation catalyst, using an oxide or phosphate of Mg, Al, Ti, Zn or a rare earth metal as the condensation catalyst.

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