化学学报 ›› 1957, Vol. 23 ›› Issue (4): 280-286. 上一篇    下一篇

论文

酰異硫氰的研究Ⅳ.對溴苯甲酰異硫氰用作鑑定胺類的試劑

陳耀祖, 倪胤皓   

  1. 蘭州大學化學系
  • 投稿日期:1957-03-18 发布日期:2013-06-03

STUDIES ON ACYLISOTHIOCYANATES IV. p-BROMOBENZOYLISOTHIOCYANATE AS REAGENT FOR IDENTIFICATION OF AMINES

CHEN YAO-TSO, NEE YIN-HAW   

  1. Department of Chemistry, Lanchow University, Lanchow
  • Received:1957-03-18 Published:2013-06-03

1.在沸腾的丙酮溶液中,对溴苯甲酰异硫氰与二十四种伯胺与仲胺类(包括低分子量的脂肪胺,杂氮圜胺及具取代基的芳香胺类)作用时,得到相当满意产量的晶体衍生物,此反应也可以在低温下(-5—0°)水溶液中进行。衍生物都有固定之熔点,分布在100—250°之间,产率60—95%。2.当对溴苯甲酰异硫氰与具取代基的苯胺类作用时。衍生物的产率随取代基的+I或+E效应的强度增大而递降,2,4二硝基苯胺与试剂在150—155°,有吡啶催化剂存在下,加热三刻钟仍无作用。

In continuing our work on using acylisothiocyanates as reagent for identification of organic compounds, we have investigated the reaction of p-bromobenzoyIisothiocyanate with amines. The results obtained may be summarized as follows.