Heterodiene synthesis. Synthesis of fused thiopyrano [2,3-<i>d</i>]thiazole, Benzopyrano[3′,4′:4,5]thiopyrano[2,3-d]thiazole and thiazolo[3,4-c]triazine derivative
作者:Sanaa O. Abd Allah、Hamdy A. Hammouda、Fatma A. Ali
DOI:10.1002/jhet.5570220258
日期:1985.3
the fused thiopyrano[2,3-d]thiazolidinethione derivatives 2, 4 and 6, respectively. The salicylidene derivative 1 reacts with ethyl acrylate and malononitrile to afford the fused [1]benzopyrano[3′,4′:4,5]thiopyrano[2,3-d]thiazoles 3 and 9, respectively. 4-Phenylhydrazono-2-thiazolidinethione (11) reacts with ethyl bromoacetate and/or phenacyl bromide to yield the fused thiazolo[3,4-c]triazines 13 and
5-水杨基内硫唑烷-2,4-二硫酮(1)与丙烯腈,N-苯基马来酰亚胺和乙二甲酸乙二甲酯二甲酯反应,分别得到稠合的硫代吡喃并[2,3- d ]噻唑烷硫酮衍生物2、4和6。水杨叉衍生物1与丙烯酸乙酯和丙二腈反应,分别得到稠合的[1]苯并吡喃并[3',4':4,5]硫代吡喃并[2,3- d ]噻唑3和9。4-苯基肼基-2-噻唑烷硫酮(11)与溴乙酸乙酯和/或苯甲酰溴反应生成稠合的噻唑并[3,4- c ]三嗪13和14。