作者:Francisco Foubelo、Ana Gutiérrez、Miguel Yus
DOI:10.1055/s-1999-3426
日期:1999.3
The successive reaction of β- or γ-hydroxy or amino phenyl thioethers (1, 4) with butyllithium and an excess of lithium powder in the presence of a catalytic amount of DTBB in THF at - 78 °C leads to the formation of the corresponding β-γ-functionalized organolithium compounds 2 or 5, respectively, which by treatment with different electrophiles [D2O, t-BuCHO, PhCHO, Me2CO, (CH2)4CO, (CH2)5CO] at temperatures ranging between - 78 °C and room temperature yields, after hydrolysis with water, the expected functionalized alcohols or amines 3 or 6, respectively, in a completely regioselective manner.
β-或γ-羟基或氨基苯硫醚(1, 4)与丁基锂和过量锂粉在催化量的DTBB存在下,在-78°C的THF中连续反应,分别生成相应的β-γ-功能化有机锂化合物2或5。这些化合物与不同的亲电试剂[D2O, t-BuCHO, PhCHO, Me2CO, (CH2)4CO, (CH2)5CO]在-78°C至室温范围内的温度下处理后,经水解,以完全区域选择性的方式分别得到预期的功能化醇或胺3或6。