32375-14-7

Upstream product

• 23243-67-6 3-(4-benzyloxyphenyl)-1-(2,4-dibenzyloxy-6-hydroxyphenyl)prop-2-en-1-one 
• 96333-59-4 5,7-bis(benzyloxy)-2-(4-(benzyloxy)phenyl)-4H-chromen-4-one 

Relevant academic research and scientific papers

Synthesis of Benzopyran-Fused Flavone Derivatives via Microwave-Assisted Intramolecular C-H Activation

A microwave-assisted intramolecular direct arylation method for the synthesis of benzopyran-fused flavone derivatives containing natural flavone backbones is described. Different polyalkoxy flavones were synthesized and functionalized with 2-bromobenzyl bromide. The resulting compounds were subjected to palladium-catalyzed intramolecular direct arylation reactions supported by microwave irradiation to produce fused tetracyclic flavones. In the case of the 7-substituted chrysin derivative, the regioselectivity of the coupling was also examined.