Patent · US Expired

Process for the preparation of hydroxybenzaldehydes

US4119671A · kind A · utility

11Cited by

3References

8Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Kurt Bauer
Reiner Molleken
Helmut Fiege · Leverkusen, DE
Karlfried Wedemeyer · Cologne, DE

Key dates

Filing date	Apr 29, 1977
Grant date	Oct 10, 1978
Priority date	—
Expiry date	Apr 29, 1997

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C47/57
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Salicylaldehyde and other hydroxybenzaldehydes are prepared by oxydation of a hydroxybenzyl alcohol in the presence of a platinum metal catalyst and lead, silver, tellurium or tin or compounds thereof as activator.

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