257282-95-4Relevant articles and documents
A convenient synthesis of 2-amino-5-methyl-3-nitrobenzenethiol and its conversion into phenothiazines via a smiles rearrangement
Ojha,Mathur, Priyanka,Jaisinghani, Neera,Adwani, Purnima
, p. 77 - 81 (2007/10/03)
The synthesis of some substituted 3-methyl-1-nitro phenothiazines via a Smiles rearrangement is reported. 2-Amino-5-methyl 3-nitrobenzenethiol was prepared by alkaline hydrolysis of 2-amino-6-methyl-4-nitrobenzothiazole and condensed with o-halonitrobenzenes to obtain diaryl sulphides. They were converted by formic acid into formyl derivatives which by a Smiles rearrangement give the corresponding phenothiazines.