Highly stereoselective 1,4-asymmetric reactions of 2-(arylsulfinyl)benzaldehydes and 2-(arylsulfinyl)phenyl ketones
作者:Shuichi Nakamura、Masahiro Oda、Hiroki Yasuda、Takeshi Toru
DOI:10.1016/s0040-4020(01)00844-4
日期:2001.10
Grignard reaction of 2-(arylsulfinyl)benzaldehydes and the DIBAL reduction of 2-(arylsulfinyl)phenyl ketones were examined. The sterically bulky (2,4,6-trimethylphenyl)- and (2,4,6-triisopropylphenyl)sulfinyl groups were shown to effect high 1,4-remote asymmetric induction. The optically active 1-phenyl-1-p-tolylmethanol could be efficiently prepared by desulfinylation of the Grignard reaction product
研究了2-(芳基亚磺酰基)苯甲醛的格氏反应和2-(芳基亚磺酰基)苯基酮的DIBAL还原。立体上庞大的(2,4,6-三甲基苯基)-和(2,4,6-三异丙基苯基)亚磺酰基显示出高的1,4-远程不对称诱导作用。光学活性的1-苯基-1-对甲苯甲醇可以通过对由手性[(2,4,6-三异丙基苯基)亚磺酰基]苯甲醛获得的格利雅反应产物进行脱亚磺酰化而有效地制备。