Tetrahedron letters

Electron-transfer reaction of 1, 2-disila-3, 5-cyclohexadienes

M Kako, H Takada, Y Nakadaira

文献索引：Kako, Masahiro; Takada, Hideki; Nakadaira, Yasuhiro Tetrahedron Letters, 1997 , vol. 38, # 20 p. 3525 - 3528

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被引用次数: 3

摘要

Photolysis of 1, 2-disila-3, 5-cyclohaxadienes 1a-b in the presence of methylene blue as a sensitizer led to efficient formation of the corresponding siloles as ring contraction products. The reaction mechanism is best rationalized by electron-transfer from 1a-b to the excited state of methylene blue. Semiempirical molecular orbital calculation was also carried out to characterize the geometric and electronic structure of radical cation 1a+•.