作者:Belen Abarca、Rafael Ballesteros、Emilio Enriquez、Gurnos Jones
DOI:10.1016/s0040-4020(01)96638-4
日期:1985.1
Cycloaddition reactions between 2-vinylthiophen and the dienophiles maleic anhydride, dimethyl acetylenedicarboxylate,' methyl propiolate, and methyl acrylate, are reported. Products include simple benzo[b]thiophen carboxylates (6, 13, 17) and reduced derivatives (3, 4, 18). The acetylenic dienophiles also gave a dihydrobenzthienyl-acrylate (16) or -fumarate (11), and the dithienylcyclohexene esters
据报道2-乙烯基噻吩与亲二烯体马来酸酐,乙炔二羧酸二甲酯,丙酸甲酯和丙烯酸甲酯之间的环加成反应。产品包括简单的苯并[b]噻吩羧酸盐(6、13、17)和还原衍生物(3、4、18)。炔属二烯亲核体还得到二氢苯并噻吩基丙烯酸酯(16)或-富马酸酯(11),以及二噻吩基环己烯酸酯(7)和(14)。