Regioselective synthesis of cyclopentenones from 4-thianone

H Matsuyama, Y Miyazawa, Y Takei…

文献索引：Matsuyama, Haruo; Miyazawa, Yasuyuki; Takei, Yuji; Kobayashi, Michio Journal of Organic Chemistry, 1987 ,  vol. 52,  # 9  p. 1703 - 1710

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被引用次数: 37

摘要

&: ooc" a"(a) RX, K2C03, acetone reflux;(b) RX, Me2S0, 25" C;(c) LiC1, HMPA, 80" C, or NaCl, wet Me2S0, 150" C. active functional group for a ring transformation. However, organic syntheses using 4-thianone have been little studied and only a few examples such as steroid synthesis by the use of S-methyl-4-oxothianium ion2 and optically active alcohol synthesis by enzymic reduction of 4-thianone3 have been reported. In recent years, there ...