Patent · US Expired

Hydroquinones

US4201879A · kind A · utility

14Cited by
1References
1Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 15, 1978
Grant dateMay 6, 1980
Priority date—
Expiry dateDec 15, 1998

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07F9/5442
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

A process is disclosed for producing (S)-(+)-6-hydroxy-2,5,7,8-tetramethylchroman-2-methanol from either alkyl(R)-2-benzyloxy-3-hydroxy-2-methyl-propionate or (S)-2,2,4-trimethyl-1,3-dioxolan-4-ethanol including intermediates in this synthesis.

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