Benzothiazines in organic synthesis. Synthesis of fluorescent 7-amino-2,1-benzothiazines.
نویسندگان
چکیده
Fluorescent 7-amino-2,1-benzothiazines were prepared in high yields using the palladium-catalyzed reaction of 4-amino-2-chlorobenzaldehydes with a sulfoximine or the reaction of 7-fluoro-2,1-benzothiazines with amines.
منابع مشابه
Copper-catalyzed ring expansion of 2-aminobenzothiazoles with alkynyl carboxylic acids to 1,4-benzothiazines.
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.
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عنوان ژورنال:
- Organic & biomolecular chemistry
دوره 9 23 شماره
صفحات -
تاریخ انتشار 2011