93232-47-4

Basic information

• Product Name: 1,3-diphenyl-3a,9b-dihydro-4-oxo-1H-benzopyrano<4,3-c>pyrazole
• Synonyms: 1,3-diphenyl-3a,9b-dihydro-4-oxo-1H-benzopyrano<4,3-c>pyrazole
• CAS NO: 93232-47-4
• Molecular Weight: 340.381
• Mol File: 93232-47-4.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: 1,3-diphenyl-3a,9b-dihydro-4-oxo-1H-benzopyrano<4,3-c>pyrazole(CAS DataBase Reference)
• NIST Chemistry Reference: 1,3-diphenyl-3a,9b-dihydro-4-oxo-1H-benzopyrano<4,3-c>pyrazole(93232-47-4)
• EPA Substance Registry System: 1,3-diphenyl-3a,9b-dihydro-4-oxo-1H-benzopyrano<4,3-c>pyrazole(93232-47-4)

Safety Data

• Hazardous Substances Data: 93232-47-4(Hazardous Substances Data)

Upstream product

• 91-64-5 coumarin 
• 15424-14-3 N-phenylbenzohydrazonoyl chloride 
• 100008-87-5 3-benzoyl-coumarin phenylhydrazone 

Downstream Products

• 75640-14-1 5-(2-methoxyphenyl)-1,3-diphenyl-1H-pyrazole 
• 119824-79-2 1,3-diphenyl-5-orthomethoxyphenyl-4-methoxycarbonyl pyrazole 
• 119824-80-5 1,3-diphenyl-5-orthomethoxyphenyl pyrazole-4-carboxylic acid 
• 100008-84-2 1,3-diphenyl-4-oxo-1H-benzopyrano<4,3-c>pyrazole 
• 119824-78-1 1,3-diphenyl-5-orthomethoxyphenyl-4-methoxycarbonyl-pyrazoline 

Relevant articles and documents

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

REGIOSELECTIVITY IN THE REACTIONS OF DIPHENYLNITRILIMINE WITH COUMARIN AND CHROMONE

The cycloaddition of diphenylnitrilimine with coumarin and chromone gave the cycloadducts 4 and 5 respectively.The structures of these products were based on elemental and spectral analyses and alternate synthesis.The orientations of the cycloaddition are interpreted in terms of FMO theory.