Patent · US Expired

.DELTA.16-20-Keto steroid conversion to 17.alpha.-hydroxy-20-keto steroids

US4568492A · kind A · utility

3Cited by
4References
20Claims
0Family size

Assignee

Inventor

Key dates

Filing dateSep 14, 1984
Grant dateFeb 4, 1986
Priority date—
Expiry dateSep 14, 2004

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07J5/0053
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

.DELTA.16-20-keto steroids (I) are converted to 17.alpha.-hydroxy-20-keto steroids (III) in 2 steps, hydrosilylation followed by peracid oxidation.

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