71694-85-4

Upstream product

• 555-16-8 4-nitrobenzaldehdye 
• 542-92-7 cyclopenta-1,3-diene 

Downstream Products

• 1027927-02-1 7-(4-Nitro-benzylidene)-2,3-diaza-bicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid diethyl ester 
• 77979-15-8 5,6-Dihydro-2-methyl-1,3-diphenyl-4H-cyclopentapyrrol-4-on 
• 207856-58-4 7-(4-Nitro-benzylidene)-2,3-diaza-bicyclo[2.2.1]heptane-2,3-dicarboxylic acid diethyl ester 
• 207856-64-2 7-(4-Amino-benzylidene)-2,3-diaza-bicyclo[2.2.1]heptane-2,3-dicarboxylic acid diethyl ester 
• 207856-73-3 7-(4-nitrophenylmethylene)-2,3-diazabicyclo[2.2.1]hept-2-ene 
• 207856-66-4 7-(4-aminophenylmethylene)-2,3-diazabicyclo[2.2.1]hept-2-ene 
• 77979-12-5 (4E)-5,6-Dihydro-2-methyl-4-(4-nitrophenyl)methylen-1,3-diphenyl-4H-cyclopentapyrrol 

Relevant academic research and scientific papers

An efficient catalytic method for fulvene synthesis

The effects of the nature and amount of base, substrate structure, amount of added water and solvent on the condensation of carbonyl compounds with cyclopentadiene in the presence of secondary amines were investigated. Based on these studies, a new efficient and green synthesis of fulvenes was developed.

Reactions of Fulvenes with 1,3-Dipolar Compounds, I. - Reactions of 6-Arylfulvenes with 1,3-Oxazolium-5-olates

Fulvenes 1 react with 1,3-oxazolium-5-olates 2 at the endocyclic double bond in a 1,3-dipolar cycloaddition to form dihydropyrrofulvenes 3, pyrrofulvenes 4, and bispyrrofulvenes 5.