1,2,3-Benzothiadiazoles. Part II. A novel rearrangement of diazonium salts derived from 7-amino-1,2,3-benzothiadiazoles
作者:E. Haddock、P. Kirby、A. W. Johnson
DOI:10.1039/j39700002514
日期:——
Diazotisation of a substituted 7-amino-1,2,3-benzothiadiazole, followed by removal of the diazonium group by hypophosphorous acid or by a Sandmeyer reaction, may lead to a 1,2,3-benzothiadiazole containing an orientation of substituents different from that of the starting material. The occurrence of the rearrangement is governed by the nature and position of the 4- and 6-substituents of the original
取代的7-氨基-1,2,3-苯并噻二唑重氮化,然后通过次磷酸或Sandmeyer反应去除重氮基团,可能会导致1,2,3-苯并噻二唑的取代基取向不同于起始材料。重排的发生取决于原始氨基化合物的4和6位取代基的性质和位置。