The reaction of different 3-chlorinated allyl amines 1a,b or phenylether 1c with an excess of lithium powder, a catalytic amount of DTBB (5 mol %) and an electrophile [PriCHO, ButCHO, Et2CO, (CH2)5CO] in THF at −78°C gives, after hydrolysis with water, the expected mixture of the corresponding products 2. The corresponding two-step process at temperatures ranging between −30 and −40°C [electrophiles:
不同的3
氯化
烯丙基胺的反应1A,B或苯基醚1c中与过量的
锂粉末,DTBB催化量(5摩尔%)和亲电[Pr中我CHO,卜吨CHO,等2 CO,(CH 2)-78°C下的THF中的5 CO]用
水水解后,得到相应产物2的预期混合物。在温度范围-30至-40℃[电子试剂:PR相应的两个步骤的过程我CHO,卜吨CHO,(CH 2)5 CO]产生的
丙炔衍
生物3。给出了对此行为的机械解释。