<i>N</i>,<i>N</i>′-Carbonyldi[2(3<i>H</i>)-benzoxazolethione]: New, Reactive Condensing Agent for the Synthesis of Amides, Esters, Peptides, and Polyamides
作者:Mitsuru Ueda、Naomi Kawaharasaki、Yoshio Imai
DOI:10.1246/bcsj.57.85
日期:1984.1
N′-carbonyldi[2(3H)-benzoxazolethione] (3), was readily prepared by the reaction of 2-benzoxazolethiol and trichloromethyl chloroformate in benzene. The condensing agent 3 is shown to be useful for the preparation of amides, esters, and dipeptides under mild conditions. A successful polyamide synthesis by the polycondensation of isophthalic acid with diamines using 3 is also described.
一种新的缩合剂 N,N'-羰基二[2(3H)-苯并恶唑硫酮] (3),很容易通过 2-苯并恶唑硫醇和氯甲酸三氯甲酯在苯中的反应制备。缩合剂3显示可用于在温和条件下制备酰胺、酯和二肽。还描述了通过间苯二甲酸与二胺使用 3 缩聚成功的聚酰胺合成。