Title:
MANUFACTURE OF INDOLE DERIVATIVE
Document Type and Number:
Japanese Patent JPS6197263
Kind Code:
A
Abstract:
Compounds which, in one of the possible tautomeric forms and as free acidic compounds, are of the general formula I where R is unsubstituted or substituted alkyl, alkoxy, cycloalkoxy or aryloxy and the ring A may be further substituted, are prepared by a process in which a compound of the formula II where X is hydrogen or an alkoxycarbonyl group and R has the above meanings with the exception of unsubstituted or substituted alkyl, is converted in an alcoholate-containing solution, and the product is then acidified. The compounds prepared according to the invention are useful intermediates for the preparation of dyes.
Inventors:
ERUNSUTO SHIEFUTSUIIKU
Application Number:
JP22499785A
Publication Date:
May 15, 1986
Filing Date:
October 11, 1985
Export Citation:
Assignee:
BASF AG
International Classes:
C07D209/36; C07D209/42; C07D265/26; (IPC1-7): C07D209/36; C07D265/26
Attorney, Agent or Firm:
Toshio Yano (2 outside)