71425-56-4

Upstream product

• 672-78-6 methyl p-toluene sulfinate 
• 3185-99-7 Methyl p-tolyl sulfone 
• 1517-74-4 1-(isopropylsulfinyl)-4-methylbenzene 
• 17609-16-4 p-CH₃C₆H₄SO₂CH₂Li 

Downstream Products

• 201664-67-7 C₁₇H₂₀O₃S₂ 
• 201664-66-6 1-(toluene-4-sulfinyl)-1-(toluene-4-sulfonyl)-ethane 
• 201664-70-2 4-Methyl-N-[1-methyl-2-(toluene-4-sulfonyl)-2-p-tolylsulfanyl-ethyl]-N-((E)-3-phenyl-allyl)-benzenesulfonamide 
• 201664-69-9 4-Methyl-N-((E)-3-phenyl-allyl)-N-[2-(toluene-4-sulfonyl)-2-p-tolylsulfanyl-ethyl]-benzenesulfonamide 
• 201664-68-8 C₁₆H₁₆O₂S₂ 
• 156808-53-6 p-tolyl p-tolylthioprop-1-enyl sulfone 

Relevant academic research and scientific papers

Heterocyclic synthesis by C-C bond formation. Thionium ion-mediated preparation of substituted pyrrolidines and piperidines

Dithioacetal-S,S-dioxides 6 and 7 undergo cyclisation to give pyrrolidines and piperidines upon exposure to Lewis acid. An unexpected tandem cyclisation of 5 to give 10 is described.