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Reactions of pyranylidenemethylpyrylium salts with ammonia and amines
Author(s) -
Van Allan J. A.,
Reynolds G. A.
Publication year - 1976
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.5570130330
Subject(s) - chemistry , aniline , primary (astronomy) , ammonia , oxygen atom , oxygen , nitrogen atom , nitrogen , organic chemistry , liquid ammonia , amine gas treating , inorganic chemistry , medicinal chemistry , molecule , group (periodic table) , physics , astronomy
Pyranylidenemethylpyrylium salts (1) react with ammonia to give pyranylidenepyridines as a result of the replacement of one of the oxygen atoms of 1 by nitrogen. Aliphatic primary amines react with 1 by replacing both of the oxygen atoms by nitrogens. Aniline and 1 give the monoreplacement product. Pyranylidenemethylthiopyrylium salts have only the oxygen atom replaced by reaction with primary aliphatic amines.