93758-95-3

Upstream product

• 93718-08-2 2-methyl-6-phenylazo-benzothiazole 
• 586-96-9 Nitrosobenzene 

Downstream Products

• 95771-21-4 7-methyl-1-phenyl-1H-thiazolo[5',4':3,4]benzo[1,2-d][1,2,3]triazole 
• 107277-76-9 2-(4-dimethylamino-styryl)-3,6-dimethyl-8-phenyl-imidazo[4',5':3,4]benzo[1,2-d]thiazolediium; bis-(methyl sulfate) 
• 102576-30-7 7-(4-dimethylamino-styryl)-3,6-dimethyl-1-phenyl-thiazolo[5',4':3,4]benzo[1,2-d][1,2,3]triazolediium; bis-(methyl sulfate) 
• 106301-72-8 1,3-bis-(3,6-dimethyl-8-phenyl-imidazo[4',5':3,4]benzo[1,2-d]thiazolium-2-yl)-trimethinium; tris-(methyl sulfate) 
• 105820-32-4 1,3-bis-(3,6-dimethyl-1-phenyl-thiazolo[5',4':3,4]benzo[1,2-d][1,2,3]triazolium-7-yl)-trimethinium; tris-(methyl sulfate) 
• 97319-47-6 2-methyl-8-phenyl-8H-imidazo[4',5':3,4]benzo[1,2-d]thiazole 
• 97470-24-1 2,7-dimethyl-8-phenyl-8H-imidazo[4',5':3,4]benzo[1,2-d]thiazole 
• 93758-94-2 2-methyl-N⁷-phenyl-benzothiazole-6,7-diamine 

Relevant academic research and scientific papers

Hydrogen peroxide based oxidation of hydrazines using HBr catalyst

Azo compounds (RN = NR′) are an important class of organic molecules that find wide application in organic synthesis. Herein, we report an efficient, practical and metal-free oxidation of hydrazines (RNH-NHR’) to azo compounds using 5 mol% HBr and hydrogen peroxide as terminal oxidant. This new method has been demonstrated by 40 examples with excellent yields. In addition, we showcased two examples of the one-pot sequential reactions involving our hydrazine oxidation/hydrolysis/Heck reaction or Cu-catalyzed N-arylation with aryl boronic acid. The distinct advantages of this protocol include metal-free catalysis, waste prevention, and easy operation.