1,3-Dipolar cycloaddition of 3-phenylamino-5-phenylimino-1,2,4-dithiazole to 1-acyl-2-phenylacetylenes—A new route to functionalized 1,3-thiazole derivatives
作者:T. E. Glotova、M. Yu. Dvorko、A. I. Albanov、O. N. Kazheva、G. V. Shilov、O. A. D’yachenko
DOI:10.1134/s1070428008100230
日期:2008.10
3-Phenylamino-5-phenylimino-1,2,4-dithiazole reacted with 1-acyl-2-phenylacetylenes in ethanol or toluene on heating (78-80C, 1 h) in chemo- and regioselective fashion to give previously unknown N-[5-acyl-3,4-diphenyl-1,3-thiazol-2(3H)-ylidene]-N'-phenylthioureas (yield 57-60%). The structure of N-[5-benzoyl-3,4-diphenyl-1,3-thiazol-2(3H)-ylidene]-N'-phenylthiourea was proved by X-ray analysis.