Convenient Preparation of <i>tert</i>-Butyl <i>β</i>-(Protected amino)esters
作者:Alan R. Katritzky、Kostyantyn Kirichenko、Ahamad M. Elsayed、Yu Ji、Yunfeng Fang、Peter J. Steel
DOI:10.1021/jo0110810
日期:2002.7.1
of p-TsOH gave the corresponding benzyloxycarbonylamino-1-(1-benzotriazolyl)alkane 2 in good yields. Compounds 2 treated with substituted tert-butyl acetates 3 using LDA as a base afford smoothly and under mild conditions the N-2-protected 3-aminoalkanoic esters 4.