4197-99-3

Basic information

• Product Name: 4H-1-Benzopyran-4-one, 3-benzoyl-
• CAS NO: 4197-99-3
• Molecular Formula: C16H10O3
• Molecular Weight: 250.254
• Mol File: 4197-99-3.mol
• Article Data: 8

Chemical Properties

• CAS DataBase Reference: 4H-1-Benzopyran-4-one, 3-benzoyl-(CAS DataBase Reference)
• NIST Chemistry Reference: 4H-1-Benzopyran-4-one, 3-benzoyl-(4197-99-3)
• EPA Substance Registry System: 4H-1-Benzopyran-4-one, 3-benzoyl-(4197-99-3)

Safety Data

• Hazardous Substances Data: 4197-99-3(Hazardous Substances Data)

Upstream product

• 30779-90-9 (E)-3-benzylidenechroman-4-one 
• 119139-39-8 3-(Hydroxy-phenyl-methyl)-2-phenyl-chromen-4-one 
• 119139-32-1 4''-chloro-3-α-hydroxybenzylflavone 
• 119139-30-9 4''-methoxy-3-α-hydroxybenzylflavone 
• 4010-33-7 2-acetylphenyl benzoate 
• 98-88-4 benzoyl chloride 
• 118-93-4 o-hydroxyacetophenone 
• 24467-41-2 (E)-3-benzylideneflavanone 
• 24513-65-3 (Z)-3-benzylidene-4-chromanone 
• 1469-94-9 1-(2-hydroxyphenyl)-3-phenyl-1,3-propanedione 
• 4637-24-5 N,N-dimethyl-formamide dimethyl acetal 

Downstream Products

• 37042-05-0 5-(4-oxo-2-phenyl-4H-chromen-3-ylmethylene)-2-thioxo-dihydro-pyrimidine-4,6-dione 
• 1415665-07-4 4-(2-hydroxybenzoyl)-2,3,6-triphenylphenol 

Relevant articles and documents

Synthesis of novel fused chromone-pyrimidine hybrids and 2,4,5-trisubstituted pyrimidine derivatives via ANRORC rearrangement

A facile and versatile procedure for the synthesis of functionalized novel 2,5-diphenyl-5H-chromeno[4,3-d]pyrimidin-5-ol and (2,4-diphenylpyrimidin-5-yl) (2-hydroxyphenyl) methanone has been described. The key step in the synthesis involves the ANRORC rea

Topochemical photodimerization of (E)-3-benzylidene-4-chromanone derivatives from β-type structures directed by halogen groups

Halogen substituent plays an important role in the crystalline packing of aromatic compounds. The [2+2] photocycloaddition of (E)-3-benzylidene-4- chromanones in the crystalline state was investigated, and halogen substitution has been adopted to organize molecules with proper arrangement for photodimerization. Not halogen bonds, but the electron-withdrawing property of halogen atoms can enhance the face-to-face π-π interactions. Therefore, F, Cl or Br substitution at the para position of phenyl gave rise to almost the same β-structures with face-to-face π-stacking. Only resulted β-structures can undergo photodimerization, which gave the syn-HH (syn-head-to-head) products with high regio-/stereoselectivity.

Novel conversion of some E-3-benzylideneflavanones to 3-benzoylchromones under a Schmidt rearrangement condition

On treatment with NaN3/TFA, some E-3-benzylideneflavanones yield 3- benzoylchromones with the loss of 2-aryl group as the corresponding aniline, a plausible mechanistic path for which has been delineated. An acid-catalysed skeletal rearrangement of some E-3-benzylideneflavanones also takes place.