145223-92-3

Upstream product

• 941-69-5 N-phenyl-maleimide 
• 136209-86-4 1-(4-Chloro-phenyl)-2-(dimethyl-hydrazono)-ethanethione 
• 145223-89-8 2-(4-Chloro-phenyl)-4-dimethylamino-6-phenyl-4a,7a-dihydro-4H-pyrrolo[3,4-b][1,4]thiazine-5,7-dione 

Relevant academic research and scientific papers

4H-1,4-THIAZINES ET 2H-1,4-THIAZINES A PARTIR DE 2-(DIALKYLHYDRAZONO)THIOACETOPHENONES

2-(Dialkylhydrazono)thioacetophenones 1 react with N-phenylmaleimide and lead via cycloaddition to 4-amino-3,4-dihydro-2H-1,4-thiazines 2 which are easily converted into 4H-1,4-thiazines 3.Reaction with 1,4-naphthoquinone leads directly to 4H-1,4-