24467-42-3

Upstream product

• 123-11-5 4-methoxy-benzaldehyde 
• 487-26-3 Flavanone 
• 118-93-4 o-hydroxyacetophenone 
• 100-52-7 benzaldehyde 
• 150073-63-5 2-(4-Methoxy-phenyl)-3-[1-phenyl-meth-(E)-ylidene]-chroman-4-one 

Downstream Products

• 119139-37-6 3-[(4-methoxyphenyl)carbonyl]-2-phenyl-4H-chromen-4-one 
• 119139-30-9 4''-methoxy-3-α-hydroxybenzylflavone 
• 24467-45-6 3-[1-(4-Methoxy-phenyl)-meth-(Z)-ylidene]-2-phenyl-chroman-4-one 
• 109754-35-0 C₂₄H₂₀N₂O₃ 

Relevant academic research and scientific papers

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.

On the first one-pot general synthesis of novel 3-benzal-2,3-dihydro-4H-benzopyran-4-ones

The base-catalysed condensation reaction between 2-hydroxyacetophenone and aryl aldehyde gives the corresponding chalcone and flavanone as the products and not 3-arylideneflavanone, as claimed by Chawla and Sharma . 3-Benzylidenflavanones (flavindogenides) are obtainable by acid-catalysed condensation between a flavanone and an aryl aldehyde.