THE GENERATION OF 2,3-DIHYDRO-2,3-BIS-(METHYLENE)THIOPHENES FROM 4,6-DIHYDROTHIENO[3,4-B]THIOPHENE 5,5-DIOXIDES

被引:38
作者
CREW, APA
JENKINS, G
STORR, RC
YELLAND, M
机构
[1] UNIV LIVERPOOL,SCH CHEM,POB 147,LIVERPOOL L69 3BX,ENGLAND
[2] ICI PLC,FINE CHEM MFG ORG,MANCHESTER M9 3DA,LANCS,ENGLAND
关键词
D O I
10.1016/S0040-4039(00)88841-3
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
On heating in sulpholane 4,6-dihydrothieno[3,4-b]thiophene 5,5-dioxides give 2,3-dihydro-2,3-bis(methylene)thiophenes which can be intercepted in Diels-Alder reactions. Sulphur dioxide is a very efficient trap for these thiophene xylylenes giving the cyclic sulphones by cheletropic addition. © 1990.
引用
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页码:1491 / 1494
页数:4
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