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Synthesis, Reactions, and Tautomerism of Ketene N,S‐Acetals with Benzothiazoline Ring
Author(s) -
Huang ZhiTang,
Shi Xian
Publication year - 1990
Publication title -
chemische berichte
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 0009-2940
DOI - 10.1002/cber.19901230321
Subject(s) - ketene , chemistry , benzothiazole , tautomer , electrophile , ring (chemistry) , medicinal chemistry , stereochemistry , organic chemistry , catalysis
Ketene dithioacetals 2 react with 2‐aminothiophenol to afford the corresponding substituted 2(3 H )‐methylenebenzothiazoles 3 . Some compounds 3 react with α,β‐unsaturated esters to give 1 H ‐pyrido[2,1‐ b ]benzothiazole derivatives 4 and 5 by an electrophilic addition and cyclocondensation sequence.
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