Photo- and thermally-induced radical rearrangements of 6-methyl- and 4,4,6-trimethylcholest-5-en-3.BETA.-ol.
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概要
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The irradiation of 6-methylcholest-5-en-3β-ol in benzene containing mercury(II) oxide and iodine gave 3α,5-epoxy-6-methylene-<I>A</I>-homo-4-oxa-5α-cholestane (23%) and 2-iodo-6-methyl-<I>A</I>-nor-2,3-secocholest-5-en-3-yl formate (32%). The thermally-induced reaction at 55–60 °C gave the former in a 16% yield. The corresponding photo-reaction of 4,4,6-trimethylcholest-5-en-3β-ol, however, gave 4,6-dimethyl-4-methylene-3,4-secocholest-5-en-3-al.
- 公益社団法人 日本化学会の論文
著者
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Suginome Hiroshi
Organic Synthesis Division, Department of Chemical Process Engineering, Faculty of Engineering, Hokkaido University
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Maeda Norio
Department of Chemistry, Faculty of Science, Hokkaido University
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Seki Yoshikatsu
Organic Synthesis Division, Department of Chemical Process Engineering, Faculty of Engineering, Hokkaido University
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Orito Kazuhiko
Organic Synthesis Division, Department of Chemical Process Engineering, Faculty of Engineering, Hokkaido University
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