1,2-dithiins and precursors .17. Synthesis and properties of thieno annellated 1,2-dithiins - Structural influence on colour

被引:51
作者
Schroth, W [1 ]
Hintzsche, E [1 ]
Jordan, H [1 ]
Jende, T [1 ]
Spitzner, R [1 ]
Thondorf, I [1 ]
机构
[1] UNIV HALLE WITTENBERG,FACHBEREICH BIOCHEM BIOTECHNOL,D-06099 HALLE,GERMANY
关键词
D O I
10.1016/S0040-4020(97)00439-0
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Various thieno[3,2-c] anellated (59, 26) and dithieno[3,2-c:2,3-e] anellated I,2-dithiins (32 a-c, 45) were obtained starting from appropriate thiophene precursors. The absorption maxima covered the range from 430 to 467 nm indicating olefinic rather than aromatic character of the anellating thiophene units. Access to the isomeric thieno[2,3-c] anellated series failed due to competing reactions in the final stage, e.g. by the formation of the 12-membered cyclic bis-disulfide 53. (C) 1997 Elsevier Science Ltd.
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页码:7509 / 7528
页数:20
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