作者:Francisco Foubelo、Ana Gutiérrez、Miguel Yus
DOI:10.1016/s0040-4039(97)01008-3
日期:1997.7
The successive reaction of different β-hydroxy or β-amino thioethers 1a-d with n-butyl-lithium and an excess of lithium powder and a catalytic amount of DTBB in THF at −78°C leads to the formation of the corresponding β-functionalised organolithium compounds 2a-d, which by reaction with several electrophiles [D2O, ButCHO, PhCHO, Me2CO, (CH2)5CO] at temperatures ranging between −78 and 20°C yields,
不同的β-羟基或β-氨基硫醚1a-d与正丁基锂,过量的锂粉和催化量的DTBB在-78°C的THF中连续反应导致形成相应的β-官能化有机锂化合物2A-d ,其通过与亲电子数[d反应2 O,卜吨CHO,苯甲醛中,Me 2 CO,(CH 2)5 CO]在温度范围-78至20℃之间的产率,用水解后水,预期的功能化醇或胺3aa-de(区域选择性)。