Copper-catalyzed ring expansion of 2-aminobenzothiazoles with alkynyl carboxylic acids to 1,4-benzothiazines.
نویسندگان
چکیده
A new ring expansion of 2-aminobenzothiazoles with alkynyl carboxylic acids was developed, which allows for one-pot synthesis of 1,4-benzothiazines in moderate to excellent yields. The cascade reaction was achieved through decarboxylative coupling, nucleophilic ring-opening reaction and intramolecular hydroamination process.
منابع مشابه
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ورودعنوان ژورنال:
- Organic & biomolecular chemistry
دوره 13 10 شماره
صفحات -
تاریخ انتشار 2015