Patent · US Expired

Process for the preparation of trans-1,1,2-triphenyl-but-1-ene derivatives

US4960937A · kind A · utility

5Cited by

1References

7Claims

0Family size

Assignee

Klinge Pharma GmbH · DE

Inventors

Axel Woschina · Poing, DE
Helmut Grill

Key dates

Filing date	Oct 27, 1988
Grant date	Oct 2, 1990
Priority date	—
Expiry date	Oct 27, 2008

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C213/08
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The invention concerns the direct preparation of trans-1,1,2-triphenyl-but-1-ene derivatives having the general formula 1 by dehydration of carbinols having the general formula 2 by heating in a strongly hydrochloric or sulphuric acid medium with the exclusion of organic solvents. ##STR1##

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