76699-98-4

Upstream product

• 1704-15-0 3-hydroxy-1,3-diphenyl-2-propen-1-one 
• 72168-01-5 5-bromo-3-methyl-2-aminobenzenethiol 
• 583-75-5 4-Bromo-2-methylaniline 

Relevant academic research and scientific papers

Single step synthesis of 4H-1,4-benzothiazines

Single step synthesis of 4H-1,4-benzothiazines involving condensation and oxidative cyclisation of 2-amino-5-bromo-3-methylbenzenethiol with β-diketones/β-ketoesters in dimethyl sulfoxide is reported.

Synthesis of 2-Aminobenzenethiols and Their Conversion into Triphenodithiazines and 4H-Benzothiazines

A simple and convenient synthesis of 3-nitro-5-methoxy, 3-nitro-5-ethoxy- and 3-methyl-5-bromo-2-aminobenzenethiols (Ia-c) and their conversion into triphenodithiazines (IIa-l) and 4H-benzothiazines (Va-i) are described.