Patent · US Expired

Carbazole melonates

US4226774A · kind A · utility

1Cited by
1References
2Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 8, 1979
Grant dateOct 7, 1980
Priority date
Expiry dateAug 8, 1999

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07D209/86
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

A process for the preparation of .alpha.-methyl-carbazole-2-acetic acids, which comprises reacting an .alpha.-methyl-3-oxocyclohexane malonic acid di-lower alkyl ester with a substituted phenylhydrazine, and thereafter sequentially oxidizing and hydrolyzing the reaction product to obtain the desired acid, is described.

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