Oxazepines and thiazepines. 41 . Synthesis of 4‐aryl‐2,3‐dihydro‐2‐styryl‐1,5‐benzothiazepines by the reaction of (E,E)‐cinnamylideneacetophenones with 2‐aminothiophenol and their conversion into 2,2‐disubstituted 3‐acetyl‐2,3‐dihydrobezothiazoles |
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Authors: | Albert Lvai |
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Institution: | Albert Lévai |
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Abstract: | New 4‐aryl‐2,3‐dihydro‐2‐styryl‐1,5‐benzothiazepines 8–13 have been synthesized by an acid catalyzed reaction of 2‐arninothiophenol ( 1 ) and (E,E)‐cinnamylideneacetophenones 2–7. Ring contraction of 1,5‐benzothiazepines 8–13 provided 2,2‐disubstituted 3‐acetyl‐2,3‐dihydrobenzothiazoles 14–19 under acetylating conditions. |
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