Synthesis of 2H-1,4-benzothiazin-3(4H)-ones and 2H-1,4-benzoselenazin-3(4H)-ones with the aid of samarium(II) iodide

被引：14
|
作者：
Zhong, WH
Zhang, YM
机构：
[1] Zhejiang Univ, Dept Chem, Hangzhou 310028, Peoples R China
[2] Chinese Acad Sci, Organomet Chem Lab, Shanghai 200032, Peoples R China
来源：
TETRAHEDRON LETTERS | 2001年 / 42卷 / 17期
基金：
中国国家自然科学基金;
关键词：
samarium(II) iodide; nitro group; disulfide; diselenide; reductive cyclization; 2H-1,4-benzothiazin-3(4H)-one; 2H-1,4-benzoselenazin-3(4H)-one;
D O I：
10.1016/S0040-4039(01)00360-4
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
Bis(o-nitrophenyl) disulfides or diselenides were easy to reduce by samarium(II) iodide to produce the active intermediates 2 in situ, which readily react with alpha -halocarboxylic derivatives to yield the corresponding products 2H-1,4-benzothiazin-3(4H)-ones and 2H-1,4-benzoselenazin-3(4H)-ones, respectively, in moderate to high yields under mild conditions. (C) 2001 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：3125 / 3127
页数：3
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