136272-02-1

Upstream product

• 542-92-7 cyclopenta-1,3-diene 
• 98-88-4 benzoyl chloride 

Downstream Products

• 109940-24-1 1,4-diphenyl-cyclopenta[d][1,2]oxazine 
• 869729-32-8 1,3-diphenyl-4H-cyclopenta[c]thiophene 

Relevant academic research and scientific papers

Synthesis of 4-(1,4-diaryl-2H-cyclopent[d]pyridazin-2-yl) benzenesulfonamides

The condensation of cyclopentadienyl-derived γ-diketones and arylhydrazines was utilized to synthesize 4-(1,4-diphenyl-2H-cyclopent[d]- pyridazin-2-yl)benzenesulfonamide and 4-(1,4-di-(4-methylphenyl)-2H-cyclopent[d]pyridazin-2-yl)benzenesulfonamide in better than 80% yield. The crystal structures of the precursor hydroxyfulvene, {(5Z)-5-[hydroxy(4-methylphenyl)- methylene]cyclopenta-1,3-dien-1-yl}(4-methylphenyl)methanone, and the derived pyridazine 4-(1,4-diphenyl-2H-cyclopent[d]pyridazin-2-yl)benzenesulfonamide, were also obtained.