Ring Transformations of 1,2,4-Dithiazoles: Synthesis and Biological Studies of Novel S-Heterocycles, and Their Relevant Phosphono Derivatives
作者:Wafaa M. Abdou、Maha D. Khidre
DOI:10.1515/znb-2007-0113
日期:2007.1.1
Reactions of 5-phenyl-3(3H)-thioxo-1,2,4-dithiazole (1) with unsaturated and active phosphonium salts as well as with phosphonates, at r. t. and under the effect of basic catalysis, afforded mainly 1,3,5- dithiazines 5, 12, 17a, 17b, 23a or 23b. Substituted 1,3-dithiol 7 and 1,3-thiazoles 13, 19a, 19b, 22a and 22b were isolated as by-products. 1,3,5-Dithiazine products showed pharmacological potency
5-苯基-3(3H)-硫代-1,2,4-二噻唑 (1) 与不饱和和活性鏻盐以及膦酸盐在室温和碱性催化作用下反应,主要得到 1,3 ,5-二噻嗪 5、12、17a、17b、23a 或 23b。作为副产物分离出取代的 1,3-二硫醇 7 和 1,3-噻唑 13、19a、19b、22a 和 22b。1,3,5-二噻嗪产品显示出药理效力。