55927-37-2

Upstream product

• 142751-48-2 Dimethyl-thiocarbamic acid O-(5-hydroxy-2-methyl-4-oxo-3-phenyl-4H-chromen-7-yl) ester 
• 844-95-1 5,7-dihydroxy-2-methylisoflavone 
• 142751-53-9 Dimethyl-thiocarbamic acid S-(5-hydroxy-2-methyl-4-oxo-3-phenyl-4H-chromen-7-yl) ester 

Relevant academic research and scientific papers

Facile deoxygenation of hydroxylated flavonoids by palladium-catalysed reduction of its triflate derivatives

An efficient procedure to deoxygenate hydroxy substituted flavonoids, isoflavonoids and related compounds via their trifluoromethanesulfonates is presented. Their reduction with formic acid in the presence of a catalytic amount of palladium acetate, triethylamine and 1,3-bis(diphenyl-phosphanyl) propane (dppp) in DMF results in their des-hyaroxy derivatives without affecting other functional groups.

New procedures for the preparation of isoflavones with unsubstituted ring A

Isoflavones with unsubstituted ring A have been synthesized either by the ring closure of 2-hydroxydeoxybenzoins or by the dehydroxylation of 7-hydroxyisoflavones. 7-Mercaptoisoflavones have also been prepared.