Author:
Gale DJ,Lin J,Wilshire JFK
Abstract
The cyclization of several
substituted acetophenone methylphenylhydrazones to indoles has been achieved by
means of polyphosphoric acid as the reagent. The resultant N-methyl-2- phenylindoles and their 3-formyl analogues were used for
the preparation of several new polymethine basic dyes related to Astrazon
Orange R, the ultraviolet spectral and lightfastness (on wool) properties of which
are described. The cyclization of some cycloalkanone methylphenylhydrazones has
been achieved in acetic acid.
Cited by
8 articles.
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