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Synthese von β‐Keto‐amidinen durch Sulfidkontraktion von Acylmethyl‐isothioharnstoffen
Author(s) -
Heffe Wilhelm,
Balsiger Rudolf W.,
Thoma Klaus
Publication year - 1974
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19740570435
Subject(s) - chemistry , triphenylphosphine , medicinal chemistry , sulfur , organic chemistry , catalysis
N‐Substituted β‐ketoamidines are obtained readily by condensing N‐substituted thioureas 6 with α‐halogenoketones 5 and extruding the sulfur from the resulting acylmethylisothiourea 7 with triphenylphosphine (sulfide contraction).