DTBB-Catalysed lithiation of 3-functionalised 1-chloropropenes
作者:Cecilia Gómez、Fernando F Huerta、Miguel Yus
DOI:10.1016/s0040-4020(98)00310-x
日期:1998.5
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: