71490-84-1

Upstream product

• 15424-14-3 N-phenylbenzohydrazonoyl chloride 
• 100-63-0 phenylhydrazine 
• 119824-88-3 1,3-diphenyl-3a-ethoxycarbonyl-3a,9b-dihydro-4-oxo-3H-benzopyrano<3,4-c>pyrazole 
• 119824-83-8 1,3-diphenyl-4-orthomethoxyphenyl-5-methoxycarbonyl pyrazoline 
• 119824-84-9 methyl 1,3-diphenyl-4-(o-methoxyphenyl)pyrazole-5-carboxylate 
• 119854-45-4 1,3-diphenyl-3a-4b-dihydro-4-oxo-3H-benzopyrano<3,4-c>pyrazole-3a-carboxylic acid 
• 119824-89-4 1,3-diphenyl-3a-acetyl-3a,9b-dihydro-4-oxo-3H-benzopyrano<3,4-c>pyrazole 
• 119824-81-6 1,3-diphenyl-4-oxo-3H-benzopyrano<3,4-c>pyrazole 
• 119824-86-1 3-Dimethylamino-2-(2-methoxy-phenyl)-1-phenyl-propan-1-one 
• 1846-76-0 ethyl coumarin-3-carboxylate 
• 27356-33-8 2-(2-methoxyphenyl)-1-phenylethan-1-one 
• 3949-36-8 3-acetylcoumarin 
• 119824-85-0 1,3-diphenyl-4-orthomethoxyphenyl pyrazole-5-carboxylic acid 
• 119824-87-2 1,3-diphenyl-4-orthomethoxyphenyl pyrazoline 

Relevant academic research and scientific papers

REGIOCHEMISTRY OF THE CYCLOADDITIONS OF DIPHENYLNITRILIMINE TO COUMARIN, 3-ETHOXYCARBONYL AND 3-ACETYL COUMARINS. A REINVESTIGATION

The cycloaddition reactions of diphenylnitrilimine to coumarin, 3-ethoxycarbonyl and 3-acetylcoumarins were studied.The observed regiochemistry of the reaction with the coumarin 4a was the same as the one suggested by other researchers.For the coumarins 4