presence of different electrophiles [PriCHO, ButCHO, Et2CO, (CH2)5CO, PhCOMe, Me3SiCl] in THF at −50°C followed by hydrolysis with water leads to the corresponding compounds 2. When the same DTBB-catalysed lithiation is applied to several chlorinated benzylic alcohols or mercaptans (4 or 5) it is necessary to deprotonate the starting material with BunLi; treatment of the resulting anions or amine 6 as
的
氯化苄基
氯(反应1与过量的
锂粉末和DTBB(4摩尔%)的在不同亲电[Pr中存在催化量)的我CHO,卜吨CHO,等2 CO,(CH 2)5在-50°C下于THF中溶解[CO,PhCOMe,Me 3 SiCl],然后用
水水解,得到相应的化合物2。当相同的DTBB催化的
锂化被施加到几个
氯化苄醇或
硫醇(4或5),有必要去质子与卜原料Ñ力; 处理所得的阴离子或胺6如上述,但在-78℃下,导致预期的反应产物8,以不同的亲电子反应后[
镨我CHO,卜吨CHO,等2 CO,(CH 2)5 CO,PhCOMe中,Me 3的SiCl]和用
水最终
水解。