dichlorocyclopropanation reaction of (S)-3-methyl-1-phenyl-3-phospholene 1-oxide ((S)-1), but the thermolytic ring opening of (−)-2, and the selective reduction of α,β-double bond of (−)-3 did not cause the loss of optical activity. First in the literature, the resolution of a 3-phosphabicyclo[3.1.0]hexane 3-oxide (2) and a 1,2,3,6-tetrahydrophosphinine 1-oxide (4) was elaborated. © 2013 Wiley Periodicals,
前面描述的 3-methyl-1-phenyl-3-phospholene 1-oxide (1) → 6,6-dichloro-1-methyl-3-phenyl-3-phosphabicycl[3.1.0] 己烷 3-oxide (2 ) → 4-chloro-1-phenyl-1,2-dihydrophosphinine 1-oxide (3) → 4-chloro-5-methyl-1-phenyl-1,2,3,6-tetrahydrophosphinine 1-oxide (4) 反应从制备光学活性中间体/产物 (2-4) 的角度研究了序列。原则上,相应外消旋产物的拆分和旋光起始材料的转化都是制备旋光六元 P-杂环 (2-4) 的合适方法。(S)-3-甲基-1-苯基-3-
磷烯1-氧化物((S)-1)的二
氯环丙烷化反应发生外消旋化,但(-)-2的热解开环和选择性还原α, (-)-3