Reactions of aroylthioureas with acetylenic esters and dibenzoyl ethylene. Selectivity towards the formation of new 1,3-thiazines
作者:Ashraf A Aly、Essam K. Ahmed、Khalad M. El-Mokadam
DOI:10.1002/jhet.5570440630
日期:2007.11
A series of 1,3-thiazines has been synthesized by the reactions of N-aroylsubstituted thioureas with ethyl propiolate, dimethyl but-2-ynedioate and (E)-1,4-diphenyl-but-2-ene-1,4-dione. The reaction of antipyrinylphenyl thiourea with π-deficient acetylenic reagents did not afford the corresponding 1,3-thiazines, whereas pyrrolo-pyrazolopyrimidines were obtained.
通过N-芳酰基取代的硫脲与丙酸乙酯,丁-2-炔基二甲酯和(E)-1,4-二苯基-丁-2-烯-1,4-的反应合成了一系列1,3-噻嗪dione。抗吡啶基苯基硫脲与π不足的炔属试剂的反应未得到相应的1,3-噻嗪,而获得了吡咯并吡唑并嘧啶。