Studies in sigmatropic rearrangement:: Regioselective synthesis of thieno[2,3-b]-thiochromen-4-one derivatives

被引：8
|
作者：
Majumdar, KC [1 ]
Ghosh, SK [1 ]
机构：
[1] Kalyani Univ, Dept Chem, Kalyani 741235, W Bengal, India
来源：
SYNTHETIC COMMUNICATIONS | 2002年 / 32卷 / 08期
关键词：
Claisen rearrangement; 3,3]sigmatropic rearrangement; acid catalysis; thieno[2,3-b]thiochromen-4-one; 4-toluene sulfonic acid;
D O I：
10.1081/SCC-120003620
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
Thermal rearrangement of a number of 2-(4'-aryloxybut-2'-ynylthio)-thiochromen-4-ones in refluxing chlorobenzene in the presence of catalytic amounts of 4-toluenesulfonic acid afforded 3-aryloxymethyl-2-methylthieno[2,3-b]thiochromen-4-ones in 55-62% yields.
引用
收藏
页码：1271 / 1274
页数：4
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