Patent · US Expired

.alpha.-Substituted-3-(halomethyl)-4-hydroxybenzeneacetic acids

US4244885A · kind A · utility

4Cited by

4References

12Claims

0Family size

Assignee

YEDA RESEARCH AND DEVELOPMENT CO. LTD. · IL

Inventors

Abraham Nudelman · Rehovot, IL
Abraham Patchornik · Nes Ziona, IL

Key dates

Filing date	Dec 8, 1977
Grant date	Jan 13, 1981
Priority date	—
Expiry date	Dec 8, 1997

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D499/00
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

.alpha.-Substituted-3-(halomethyl)-4-hydroxybenzeneacetic acids, prepared by the halomethylation of .alpha.-substituted-4-hydroxybenzeneacetic acids are new and useful as starting materials for the preparation of cephalosporin and penicillin derivatives.

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