Synthesis of 1-(<i>T</i>-Butoxycarbonyl)benzotriazole and 1-(<i>p</i>-Methoxybenzyloxycarbonyl)benzotriazole and Their Use in the Protection of Amino Acids
作者:Alan R. Katritzky、Clara N. Fali、Jianqing Li、David J. Ager、Indra Prakash
DOI:10.1080/00397919708006101
日期:1997.5
Abstract Benzotriazol-1-ylcarbonyl chloride, generated from benzotriazole and phosgene, reacts with t-butyl alcohol and p-methoxybenzyl alcohol to give 1-(t-butoxycarbonyl)benzotriazole (4) and 1-(p-methoxy-benzyloxycarbonyl)benzotriazole (5), respectively in good yields. The synthetic utility of reagents 4 and 5 is shown by effective amino protection in phenylalanine and phenylglycine.
摘要 苯并三唑和光气生成的苯并三唑-1-基碳酰氯与叔丁醇和对甲氧基苄醇反应生成1-(叔丁氧羰基)苯并三唑(4)和1-(对甲氧基-苄氧羰基)苯并三唑( 5),分别以良好的收益率。苯丙氨酸和苯甘氨酸中的有效氨基保护显示了试剂 4 和 5 的合成效用。