697758-88-6

Basic information

• Product Name: N-(4,4-dimethoxy-cyclohexa-2,5-dienylidene)-4-nitro-benzenesulfonamide
• Synonyms: N-(4,4-dimethoxy-cyclohexa-2,5-dienylidene)-4-nitro-benzenesulfonamide
• CAS NO: 697758-88-6
• Molecular Weight: 338.341
• Mol File: 697758-88-6.mol
• Article Data: 4

Chemical Properties

• CAS DataBase Reference: N-(4,4-dimethoxy-cyclohexa-2,5-dienylidene)-4-nitro-benzenesulfonamide(CAS DataBase Reference)
• NIST Chemistry Reference: N-(4,4-dimethoxy-cyclohexa-2,5-dienylidene)-4-nitro-benzenesulfonamide(697758-88-6)
• EPA Substance Registry System: N-(4,4-dimethoxy-cyclohexa-2,5-dienylidene)-4-nitro-benzenesulfonamide(697758-88-6)

Safety Data

• Hazardous Substances Data: 697758-88-6(Hazardous Substances Data)

Upstream product

• 104-94-9 4-methoxy-aniline 
• 98-74-8 4-Nitrobenzenesulfonyl chloride 
• 62-53-3 aniline 
• 67-56-1 methanol 
• 1576-44-9 N-nosylaniline 
• 10553-17-0 N-(4-methoxyphenyl)-4-nitrobenzene sulphonamide 

Relevant articles and documents

Transition-Metal-Free Regioselective One-Pot Synthesis of Aryl Sulfones from Sodium Sulfinates via Quinone Imine Ketal

A novel, efficient, and regioselective transition-metal-free one-pot synthesis of aryl sulfones via the reactive quinone imine ketal intermediate is demonstrated using easily accessible bench-stable sulfinate salts. A broad range of functionality on p-ani

Lewis Base Promoted, Direct 1,4-Conjugate Addition to Quinone Imine Ketals: Efficient Access to Unsymmetrical Diaryl Sulfones

An alternative approach with eco-friendliness and high efficiency for the preparation of unsymmetrical diaryl sulfones has been developed. The strategy takes advantage of the reaction of sulfonyl hydrazides with quinone imine ketals catalyzed by DABCO (triethylenediamine) in ethanol. This transformation proceeds via a Lewis base promoted, direct 1,4-conjugate addition/sulfonylation/alcohol elimination reaction sequence. The protocol provides an efficient approach to access an array of diverse unsymmetrical diaryl and heterodiaryl sulfones, aryl alkyl sulfones and aryl vinyl sulfones in good to excellent yields.