Asymmetric Synthesis of 4-Phenyl-1,5-diazacyclooctan-2-one Using Optically Active Vinyl Sulfoxides
作者:Nobuhiro Itoh、Haruo Matsuyama、Masato Yoshida、Nobumasa Kamigata、Masahiko Iyoda
DOI:10.1246/bcsj.68.3121
日期:1995.11
purity by the asymmetric conjugate addition of pyrazolidine to optically active vinyl sulfoxides, t-butyl (E)-2-[(R)- and (S)-p-tolylsulfinyl]cinnamates, respectively. Starting from 7, a synthesis of optically active homaline was achieved.
(S)- 和 (R)-4-phenyl-1,5-diazacyclooctan-2-ones (7) 的两种对映异构体均通过吡唑烷与旋光乙烯基亚砜的不对称共轭加成以立体选择性合成,具有良好的光学纯度,t- (E)-2-[(R)-和(S)-p-甲苯基亚磺酰基]肉桂酸丁酯,分别。从7开始,合成了具有光学活性的homaline。