作者:Takahiro Hosokawa、Fumio Nakajima、Shooji Iwasa、Shun-Ichi Murahashi
DOI:10.1246/cl.1990.1387
日期:1990.8
Pd(II)-Catalyzed cyclization of methyl (2S,3S)-2-allyl-3-hydoxybutyrate with methanol gives (2R,4S,5S)-2,5-dimethyl-2-methoxy-4-methoxycarbonyltetrahydrofuran in 88% de. The cyclization of (2R,3S)-2-allyl-1,3-butanediol gives homochiral bicyclic acetal 3 (R1 = Me).
Pd(II) 催化 (2S,3S)-2-烯丙基-3-羟基丁酸甲酯与甲醇环化,在 88% de 中得到 (2R,4S,5S)-2,5-二甲基-2-甲氧基-4-甲氧基羰基四氢呋喃。 (2R,3S)-2-烯丙基-1,3-丁二醇环化得到纯手性双环缩醛 3 (R1 = Me)。