Formation of 2,3-bis(methoxycarbonyl)-1,4-benzodithiins by reaction of 1,4,2-benzodithiazines with dimethyl acetylenedicarboxylate
作者:Juzo Nakayama、Hideo Fukushima、Ryu Hashimoto、Masamatsu Hoshino
DOI:10.1039/c39820000612
日期:——
1,4,2-Benzodithiazines reacted with dimethyl acetylenedicarboxylate in boiling o-dichlorobenzene to give 2,3-bis(methoxycarbonyl)-1,4-benzodithiins in good yields with elemination of hydrogen cyanide or a nitrile.
1,4,2-苯并二噻嗪在沸腾的邻二氯苯中与乙炔二甲酸二甲酯反应,以高收率除去氰化氢或腈,从而得到2,3-双(甲氧基羰基)-1,4-苯并二硫噻吩。