Patent · US Expired

S-(4-biphenyl)-thiosulphuric acids and their salts, method for producing the same and method for producing 4-mercaptobiphenyls

US6271415A · kind A · utility

0Cited by

5References

10Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Friedrich-Wilhelm Ullrich · Bensberg, DE
Helmut Fiege · Leverkusen, DE
Wolfgang Eymann · Neunburg vorm Wald, DE

Key dates

Filing date	Apr 19, 2000
Grant date	Aug 7, 2001
Priority date	—
Expiry date	Apr 19, 2020

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C381/02
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The invention relates to novel S-(4-biphenyl)-thiosulfuric acids and their salts, to a method for producing them from S-(4-biphenyl)-thiosulfinic acids and their salts, and to a method for producing 4-mercaptobiphenyls from the S-(4-biphenyl)-thiosulfuric acids and their salts.

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