138957-82-1

Upstream product

• 872-85-5 pyridine-4-carbaldehyde 
• 1620-52-6 4-((benzenesulfonyl)methyl)pyridine 
• 1822-51-1 4-picolylchloride hydrochloride 
• 873-55-2 sodium benzenesulfonate 

Downstream Products

• 134460-59-6 3-(benzenesulfonyl)-1,2,3-tri(4-pyridyl)cyclopropene 
• 138957-87-6 1-(benzenesulfonyl)-1,2,3-tris(4-(N-methylpyridiniumyl))cyclopropane triflate 
• 133756-43-1 3-(benzenesulfonyl)-1,2,3-tris(4-(N-methylpyridiniumyl))cyclopropene triflate 
• 133756-29-3 hexakis(4-pyridyl)benzene 
• 133756-42-0 1-(benzenesulfonyl)-1,2,3-tri(4-pyridyl)cyclopropane 
• 133756-42-0 1,2,3-Tris(4-pyridyl)cyclopropyl phenyl sulfone 

Relevant academic research and scientific papers

Synthesis of Tripyridiniumylpropenyl Anions from Tripyridiniumylcyclopropanes and -cyclopropenes

The syntheses of three stable, isolatable tripyridiniumylpropenyl anions are described. 1,2,3-Tris(4-(N-methylpyridiniumyl))propenyl anion and 1-(benzenesulfonyl)-1,2,3-tris(4-(N-methylpyridiniumyl))propenyl anion were prepared by treating the corresponding cyclopropane with a base. 1,3-Bis(benzenesulfonyl)-1,2,3-tris(4-(N-methylpyridiniumyl))propenyl anion was prepared by nucleophilic attack of benzenesulfinate anion on 3-(benzenesulfonyl)-1,2,3-tris(4-(N-methylpyridiniumyl))cyclopropene.Reduction of this cyclopropene gave either 1-(benzenesulfonyl)-1,2,3-tris(4-(N-methylpyridiniumyl))propenyl anion or hexakis(4-(N-methylpyridiniumyl))benzene depending on the solvent used.

Tripyridylcyclopropene derivatives and their conversion to hexapyridylbenzene

1,2,3-tris(4-pyridyl)cyclopropene carrying a 3-benzenesulfonyl group has been synthesized, and other cyclopropenes carrying pyridine and pyridinium rings. Some of these can be converted to hexa(4-pyridyl)benzene and its pyridinium analog.