Studies on phenothiazines. Part<b>16</b>. Synthesis and spectral studies of substituted 1,2-dichlorophenothiazines
作者:R. R. Gupta、Vandana Saraswat、Archana Gupta、Mukesh Jain、Vandana Gupta
DOI:10.1002/jhet.5570290705
日期:1992.12
Synthesis of the title compounds by the Smiles rearrangement has been reported. 1,2-Dichloro-7-substituted phenothiazines have been prepared by the Smiles rearrangement of 3,4-dichloro-2-formamido-2′-nitro-4′-substituted-diphenyl sulphides. The latter were obtained by the formylation of the diphenyl sulphides obtained by the condensation of 2-amino-3,4-dichlorobenzenethiol with o-halogenonitrobenzenes
已经报道了通过Smiles重排合成标题化合物的方法。通过3,4-二氯-2-甲酰胺基2′-硝基-4′-取代的二苯硫醚的Smiles重排制备了1,2-二氯-7-取代的吩噻嗪。后者是通过将2-氨基-3,4-二氯苯硫醇与邻卤代硝基苯缩合而得到的二苯硫醚的甲酰化而获得的。通过使2-氨基-3,4-二氯苯硫醇与在原位发生Smiles重排的卤原子的两个邻位上含有硝基的取代的邻卤代卤代苯反应,制备了9-硝基吩噻嗪。还包括红外,核磁共振和质谱研究。