Cyclization Reactions of 2-Acyl-1-chloro-enamines with Thioamide Functional Compounds: Alternative Access to the 1,3-Thiazine and 1,3-Oxazine Series
2-Acyl-1-chloro-enamines 2 react with thioureas to 2,6-diamino-1,3-thiazinium salts 3, following to usual transformation mode of 1-heterosubstituted acylvinylchlorides A.On the other hand the reaction of 2 with thiobenzamide preferably leads to 4-amino-1,
Spitzner, Roland,Freitag, Sabine,Schroth, Werner
p. 1383 - 1394
(2007/10/02)
Ein Zugang zu 2-Acyl-1-chloroenaminen aus Acylketen-dichloriden und sekundaeren Aminen
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Schroth, Werner,Spitzner, Roland,Hugo, Sepp
p. 199 - 203
(2007/10/02)
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