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.
在催化量的对-TsOH存在下,用苯并三唑和苄基氨基甲酸酯使醛1回流,以良好的收率得到相应的苄氧基羰基氨基-1-(1-苯并三唑基)烷烃2。使用LDA作为碱,用取代的乙酸叔丁酯3处理的化合物2在温和条件下平稳提供N-2-保护的3-氨基链烷酸酯4。