77302-41-1

Upstream product

• 107379-25-9 4-chloro-N-(3-chloro-4-oxonaphthalen-1(4H)-ylidene)benzenesulfonamide 
• 178970-82-6 4-p-chlorophenylsulfonylimino-2,2,3,3-tetrachloro-1,2,3,4-tetrahydronaphthalen-1-one 
• 139739-77-8 4-p-tolylsulfonylimino-2,2,3,3-tetrachloro-1,2,3,4-tetrahydronaphthalen-1-one 

Downstream Products

• 117-80-6 2,3-Dichloro-1,4-naphthoquinone 
• 127603-84-3 2-chloroacetyl-benzoic acid 
• 31582-47-5 2-chloroacetyl-benzoic acid methyl ester 

Relevant academic research and scientific papers

Reaction of semiquinoid compounds derived from N-arylsulfonyl-p-quinonemono- and diimines with tosylhydrazine

Reaction of 4-arylsulfonylimino-2,3,5,6,6-pentachloro-2-cyclohexen-1-ones with tosylhydrazine gives rise to N-arylsulfonyl-N-p-tolylsulfonyl-2,3,5,6-tetrachloroaminophenols. With 4-arylsulfonylimino-2,2,3-trichloro-1,2,3,4-tetrahydronaphthalen-1-ones and 4-arylsulfonylimino-2-dihalo-1,2,3,4-tetrahydronaphthalen-1-ones reaction products are 4-arylsulfonylamido-2,3-dichloro-4-p-tolylsulfonylhydrazido-1,4-dihydronaphthalen-1-ones and 2-p-tolylsulfonyl-1,4-naphthoquinone-4-diazide respectively. First stage of the processes consists in dehydrohalogenation yielding the corresponding N-arylsulfonyl-p-quinonimines.

CHLORINATION OF N-ARYLSULFONYL-1,4-AMINONAPHTHOLS AND N-ARYLSULFONYL-1,4-NAPHTHOQUINONE 4-IMINES

The final products from the chlorination of N-arylsulfonyl-1,4-aminonaphthols and N-arylsulfonyl-1,4-naphthoquinone 4-imines are 4-arylsulfonylimino-1-oxo-2,2,3,3,-tetrachloro-1,2,3,4-tetrahydronaphthalenes.