29976-78-1

Upstream product

• 29976-70-3 5'-bromo-2'-hydroxy-4-methoxy-5'-methylchalcone dibromide 
• 22129-40-4 2'-hydroxy-4-methoxy-5'-methylchalcone dibromide 
• 29976-77-0 6-methyl-4'-methoxyflavone 
• 29976-66-7 2'-hydroxy-3'-bromo-4-methoxy-5'-methylchalcone 
• 16635-13-5 2'-hydroxy-4-methoxy-5'-methylchalcone 
• 29976-74-7 8-bromo-2-(4-methoxy-phenyl)-6-methyl-chroman-4-one 

Downstream Products

• 140886-01-7 8-bromo-5-methyl-2-(4-methoxyphenyl)-4H-1-benzopyran-4-thione 
• 140885-87-6 5-(3-bromo-2-hydroxy-5-methylphenyl)-3-(4-methoxyphenyl)isoxazole 
• 140885-96-7 Acetic acid 2-bromo-6-[3-(4-methoxy-phenyl)-isoxazol-5-yl]-4-methyl-phenyl ester 
• 140885-90-1 C₁₉H₁₆BrNO₄ 
• 140885-81-0 8-Bromo-2-(4-methoxy-phenyl)-6-methyl-chromen-4-one oxime 
• 29976-92-9 2-bromo-6-[5-(4-methoxy-phenyl)-isoxazol-3-yl]-4-methyl-phenol 

Relevant academic research and scientific papers

Oxidation of 2'Hydroxychalcones

2'-Hydroxychalcones (1a-f) or the isomeric flavanones (IIa-f) on refluxing in DMSO for 30 min in the presence of catalytic amount of iodine afford the corresponding flavones (III) in high yields.This method is quicker and appears to be of general applicability.

Reaction of 2'-Hydroxychalcone Dibromides with Me2SO

2'-Hydroxychalcone dibromides on treatment with Me2SO gave 2'-hydroxychalcone, 2'-hydroxy-3'- or 2'-hydroxy-5'-bromochalcone, flavone, monobrominated flavone, 6,8-dibromoflavone, 3-bromoflavone, and 3-, 6-, or 8-dibromoflavone.