Oxazepines and Thiazepines XXXVII [1]. A Simple and Convenient Procedure for the Preparation of 3-Acyl-2,3-dihydrobenzothiazoles by Ring Contraction of 2,4-Diaryl-2,3-dihydro-1,5-benzothiazepines under Acylating ConditionsOxazepine und Thiazepine, 37. Mitt. [1]. Ein einfaches und bequemes Verfahren zur Darstellung von 3-Acyl-2,3-dihydrobenzothiazolen durch Ringverengung von 2,4-Diaryl-2,3-dihydro-1,5-benzothiazepinen unter acylierenden Bedingungen
Keywords. Acylation; Ring contraction; Benzothiazoles; 1;
5-Benzothiazepines.;
D O I:
10.1007/PL00013498
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摘要:
3-Acyl-2,3-dihydrobenzothiazoles 13–30 were prepared by ring contraction of 2,4-diaryl-2,3-dihydro-1,5-benzothiazepines 1–12 under acylating conditions. This procedure provides a general and efficient access to these benzothiazole derivatives.