343233-39-6

Upstream product

• 25054-53-9 3,4-(methylenedioxy)benzoyl chloride 
• 118-93-4 o-hydroxyacetophenone 

Downstream Products

• 87867-82-1 1-(2-Hydroxyphenyl)-3-(3,4-methylendioxyphenyl)-1,3-propandion 
• 54401-45-5 2-(benzo[d][1,3]dioxol-5-yl)-4H-chromen-4-one 

Relevant academic research and scientific papers

Oxidation of 1,3-Diphenyl-1,3-propanediones with Thallium(III) Nitrate in Methanol

On oxidation with thallium(III) nitrate in methanol, 1,3-diphenyl-1,3-propanediones 1 rearrange to give 3-oxo-2,3-diphenylpropanoic esters 2 and products derived therefrom.However, 1-(2-hydroxyphenyl)-3-phenyl-1,3-propanediones 1h-k undergo oxidative cyclization to 2-aroyl-3(2H)-benzofuranones 5.The alkali and acid catalysed cleavage of 5 is discussed.