Reagent for Synthesis of Secondary Amines by Two Consecutive N-Alkylations and Its Application to Orthogonally Protected Spermidine
作者:Leif Grehn、Ulf Ragnarsson
DOI:10.1021/jo020205l
日期:2002.9.1
A novel reagent, tert-butyl 2-naphthalenesulfonylcarbamate, has been designed to allow the stepwise synthesis of secondary aliphatic amines by two consecutive N-alkylations with intermediate Boc-cleavage and final desulfonylation under mild and experimentally convenient conditions. Its application was demonstrated to make an orthogonally protected spermidine derivative, suitable for further selective