65485-14-5

Upstream product

• 119139-32-1 4''-chloro-3-α-hydroxybenzylflavone 
• 112014-59-2 (Z)-2,3-Dihydro-3-<(4-chlorophenyl)methylene>-2-phenyl-4H-1-benzopyran-4-one 
• 77015-47-5 (E)-2,3-Dihydro-3-<(4-chlorophenyl)methylene>-2-phenyl-4H-1-benzopyran-4-one 
• 16619-68-4 1-(2-hydroxyphenyl)-3-phenylprop-2-yn-1-one 
• 122-01-0 4-chloro-benzoyl chloride 
• 1415384-90-5 2-(3-phenylprop-2-ynoyl)phenyl 4-chlorobenzoate 
• 1415384-95-0 2-(3-phenylprop-2-ynoyl)phenyl 3-bromobenzoate 
• 84634-62-8 1-[2-(4-chlorobenzoyloxy)-phenyl]-ethanone 

Relevant academic research and scientific papers

A concise synthesis of 3-aroylflavones via Lewis base 9-azajulolidine- catalyzed tandem acyl transfer-cyclization

Lewis base-catalyzed tandem acyl transfer-cyclization of acylated o-alkynoylphenols leading to 3-aroylflavones was developed. 9-Azajulolidine smoothly promoted the reaction of the aroyl derivatives at ambient temperature, and the structure-diversed synthesis of 3-aroylflavones with distinct substituents was achieved in moderate to excellent yields.

Dioxirane Oxidation of 3-Arylideneflavanones: Diastereoselective Formation of trans,trans Spiroepoxides from the E Isomers

Oxidation of the E isomers of the 3-arylideneflavanones 1 by dimethyldioxirane in acetone solution at ambient temperature led to spiroepoxides trans,trans-2 in high yields (>/= 70percent) and complete diastereoselectivity.Steric interaction with the axial

FLAVANOID PART 7 : A NOVEL PHOTOSYNTHESIS OF 3-α-HYDROXYBENZYLFLAVONES FROM 3-ARYLIDENEFLAVANONES

E-3 Arylideneflavanones 4 on UV irradiation using quartzware undergo auto-oxidation to 3-aroylflavones 5.Photolysis using pyrex filter in the presence of iodoform furnishes 3-α-hydroxybenzylflavones indicating the intermediacy of the hydroperoxide 11 and form a new general method for the synthesis of these compounds not available by other routes.