作者:Justus K. Landquist
DOI:10.1039/j39670002212
日期:——
In the preparation of benzobisthiazoles from m- and p-phenylenediamines by thiocyanation or by ring closure of derived thioureas the linear tricyclic compound is usually the major or the only product. 3,6-Diamino-1,2-phenylene di(hydrogen thiosulphate)(the so-called p-phenylenediamino-2,5-bisthiosulphuric acid) is the 2,3-isomer and correction is required to structures assigned to its derivatives,
在制备benzobisthiazoles的从米-和p由硫氰化或由派生硫脲环合苯二胺的线性三环类化合物通常是主要的或唯一的产品。3,6-二氨基-1,2-亚苯基二硫代硫酸氢盐(所谓的对-苯二氨基-2,5-双硫代硫酸)是2,3-异构体,需要对其衍生物的结构进行校正,例如,二氨基苯二硫醇,双重氮硫醚和某些苯并二噻唑。在2-萘胺和6-氨基喹啉的衍生物中稠合的噻唑环的形成分别发生在1-和5-位。