作者:Masataka Yokoyama、Kenzi Sato
DOI:10.1055/s-1988-27719
日期:——
2-Substituted 3-amino-3-(methylthio)acrylonitriles cyanoketene S,N-acetals are synthesized by two convenient methods. The imino esters of their hydrochloride salts are found to be good starting materials for the synthesis of 4-substituted 3,5-diaminopyrazoles and 2,5-disubstituted 1,3,4-oxadiazoles.
通过两种简便的方法合成了 2-取代的 3-氨基-3-(甲硫基)丙烯腈 S,N-乙缩醛。 发现其盐酸盐的亚氨基酯是合成 4-取代的 3,5-二氨基吡唑和 2,5-二取代的 1,3,4-恶二唑的良好起始材料。