Cyclopropanation of substituted phenyl styryl sulfones 1 with dimethylsulfonium phenacylides was carried out by two different methods (under PTC catalysis with in situ generation of the ylides and by direct addition of ylides) to obtain a series of substituted 1-benzenesulfonyl-2-benzoyl-3-phenylcyclopropanes 2. The PTC method was found to be more facile and efficient. The spectral data of cyclopropanes 2 are discussed.
用二种不同方法(在
PTC催化下通过
in situ 生成
亚胺基和直接添加
亚胺基)对取代苯基苯基磺酮
1进行
环丙烷化反应,得到一系列取代的1-苯甲磺酰基-2-苯甲酰基-3-苯基
环丙烷2。发现
PTC方法更为简便高效。讨论了
环丙烷2的光谱数据。