67945-92-0

Upstream product

• 104-87-0 4-methyl-benzaldehyde 
• 122-78-1 phenylacetaldehyde 

Downstream Products

• 67945-98-6 4-methyl-1-((Z)-2-phenyl-butadienyl)-benzene 
• 1589518-81-9 4-methyl-N-(6-methyl-2-phenyl-1H-inden-1-yl)benzenesulfonamide 
• 67946-27-4 2-(4-methoxy-phenyl)-5-phenyl-6-p-tolyl-3,6-dihydro-2H-[1,2]oxazine 
• 67946-24-1 2-(4-chloro-phenyl)-5-phenyl-6-p-tolyl-3,6-dihydro-2H-[1,2]oxazine 
• 67946-26-3 5-phenyl-2,6-di-p-tolyl-3,6-dihydro-2H-[1,2]oxazine 
• 67946-25-2 2,5-diphenyl-6-p-tolyl-3,6-dihydro-2H-[1,2]oxazine 

Relevant academic research and scientific papers

Poly(phosphoric acid) (PPA)-Promoted 5- exo -Cyclization of Iminium Ions Generated in Situ: A Facile Access to Functionalized Indene Derivatives

A metal-free Bronsted acid promoted two-component reaction between cinnamaldehydes and sulfonamides is described. This cascade process provides a simple and atom-economical alternative synthesis of a range of functionalized indenes from easily available starting materials. The resulting N -indenylsulfonamides were readily converted into the corresponding indenylenamines or indanones.