作者:Takayuki Kato、Kimiko Kobayashi、Shinji Masuda、Masahito Segi、Tadashi Nakajima、Sohei Suga
DOI:10.1246/cl.1987.1915
日期:1987.10.5
The Arbuzov reaction of (5S,6S)-dimethoxy-2-phenyl-1,3,2-dioxaphosphacycloheptane with various alkyl halides produced acyclic phosphinates in a moderate to high diastereomer excess. The same reaction of (1S,7S)-9,9-dimethyl-4-phenyl-3,5,8,10,4-tetraoxaphosphabicyclo[5.3.0]decane with the alkyl halides needed the more vigorous reaction conditions and gave phosphinates in a low diastereomer excess. These
(5S,6S)-二甲氧基-2-苯基-1,3,2-二氧杂磷杂环庚烷与各种卤代烷的阿布佐夫反应产生了中度至高度非对映体过量的无环次膦酸酯。(1S,7S)-9,9-二甲基-4-苯基-3,5,8,10,4-四氧杂磷杂双环[5.3.0]癸烷与卤代烷的相同反应需要更剧烈的反应条件并得到次膦酸盐在低非对映异构体过量。这些次膦酸盐被转化为光学活性氧化膦。