Ph4SbI-catalyzed selective formation of. gamma.-and. sigma.-lactones from oxiranes or oxetanes with ketenes

M Fujiwara, M Imada, A Baba…

文献索引：Fujiwara, Masahiro; Imada, Makoto; Baba, Akio; Matsuda, Haruo Journal of Organic Chemistry, 1988 , vol. 53, # 25 p. 5974 - 5977

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被引用次数: 21

摘要

Reagents. 1, 3-and 1, 4-Cyclohexadienes were purified by distillation from calcium hydride under nitrogen. Cyclooctane was distilled prior to me. 1, 3-Diaminopropane (DAP) was distilled from calcium oxide and stored over 3A molecular sieves. 18-Crown-6 was purified by means of ita acetonitrile complex, 20 mp