Synthesis, Structure, and Photochemistry of 2,3,5,6-Tetrasilyl-1,4-benzoquinones and Related Compounds
Synthesis, Structure, and Photochemistry of 2,3,5,6-Tetrasilyl-1,4-benzoquinones and Related Compounds
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2,3,5,6-四甲硅烷基-1,4-苯醌及相关化合物的合成、结构和光化学
DOI:
10.1246/bcsj.75.2571
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发表时间:
2002
影响因子:
4
通讯作者:
H. Sakurai
中科院分区:
文献类型:
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作者:
Shinobu Tsutsui;K. Sakamoto;K. Ebata;C. Kabuto;H. Sakurai
2,3,5,6-Tetrasilyl- and 2,3,5,6-tetragermyl-1,4-benzoquinones were obtained by oxidation of the corresponding 1,4-dimetaloxybenzene derivatives with pyridinium chlorochromate. X-ray crystallographic analysis revealed that the quinone ring of 2,3,5,6-tetrakis(trimethylsilyl)-1,4-benzoquinone (1a) was distorted into a chair form. The deformed quinone ring allowed a σ(Cquinone-Si)–π* electronic transition in 1a. Photolysis of 1a resulted in an isomerization, creating a ketene derivative, 4-carbonyl-2,3,5,5-tetrakis(trimethylsilyl)-2-cyclopenten-1-one.
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