124360-57-2

Upstream product

• 98-59-9 p-toluenesulfonyl chloride 
• 124360-56-1 6-acetyl-5,7-dihydroxy-2,2-dimethyl-4-chromanone 
• 480-66-0 2,4,6-trihydroxyacetophenone 
• 541-47-9 3-Methylbutenoic acid 

Downstream Products

• 124360-58-3 6-acetyl-5-methoxy-2,2-dimethyl-7-tosyloxy-4-chromanone 
• 529-70-4 6-acetyl-7-hydroxy-5-methoxy-2,2-dimethyl-2H-chromene 
• 5307-59-5 robustic acid 
• 22044-61-7 robustin 
• 171021-69-5 6-acetyl-5-methoxy-2,2-dimethyl-7-tosyloxychroman-4-ol 
• 171021-70-8 6-acetyl-5-methoxy-2,2-dimethyl-7-tosyloxy-2H-chromene 
• 124360-67-4 3,4-dihydro-4-hydroxy-7-<2,5-dimethoxy-4-(tosyloxy)phenyl>-2,2-dimethyl-5-tosyloxy-2H,6H-benzo<1,2-b:5,4-b'>dipyran-6-one 
• 124360-66-3 2,3-dihydro-7-<2,5-dimethoxy-4-(tosyloxy)phenyl>-2,2-dimethyl-5-tosyloxy-4H,6H-benzo<1,2-b:5,4-b'>dipyran-4,6-dione 
• 124360-69-6 7-<2,5-dimethoxy-4-(tosyloxy)phenyl>-2,2-dimethyl-5-tosyloxy-2H,6H-benzo<1,2-b:5,4-b'>dipyran-6-one 
• 124360-72-1 7-(4-benzoyloxy-2,5-dimethoxyphenyl)-3,4-dihydro-4-hydroxy-2,2-dimethyl-5-tosyloxy-2H,6H-benzo<1,2-b:5,4-b'>dipyran-6-one 
• 124360-71-0 7-(4-benzoyloxy-2,5-dimethoxyphenyl)-2,3-dihydro-2,2-dimethyl-5-tosyloxy-4H,6H-benzo<1,2-b:5,4-b'>dipyran-4,6-dione 
• 124360-73-2 7-(4-benzoyloxy-2,5-dimethoxyphenyl)-2,2-dimethyl-5-tosyloxy-2H,6H-benzo<1,2-b:5,4-b'>dipyran-6-one 
• 124360-70-9 7-(4-benzoyloxy-2,5-dimethoxyphenyl)-2,3-dihydro-5-hydroxy-2,2-dimethyl-4H,6H-benzo<1,2-b:5,4-b'>dipyran-4,6-dione 
• 124360-65-2 2,3-dihydro-5-hydroxy-7-(4-hydroxy-2,5-dimethoxyphenyl)-2,2-dimethyl-4H,6H-benzo<1,2-b:5,4-b'>dipyran-4,6-dione 

Relevant academic research and scientific papers

Aryllead-mediated synthesis of linear 3-arylpyranocoumarins: synthesis of robustin and robustic acid

The two naturally occurring linear 3-arylpyranocoumarins, robustin 1 and robustic acid 2, have been synthesised in nine steps from methyl 2,4,6-trihydroxyphenyl ketone, in 19percent overall yield for robustin and 18percent for robustic acid.Their synthese

Synthesis of Pyranoisoflavones from Pyronochalcones: Synthesis of Elongatin and Its Angular Isomer

Elongatin (4',5-dihydroxy-2',5'-dimethoxy-2'',2''-dimethylpyranoisoflavone) was synthesized by an oxidative rearrangement of the corresponding pyronochalcone with thallium(III) nitrate and a regioselective reduction of 7-(4-benzoyloxy-2,5-dimethoxyphenyl)-2,3-dihydro-2,2-dimethyl-5-tosyloxy-4H,6H-benzodipyran-4,6-dione with sodium borohydride-palladium chloride, followed by dehydration of the resultant alcohol and hydrolysis.Its angular isomer (4',5-dihydroxy-2',5'-dimethoxy-2'',2''-dimethylpyranoisoflavone) was also synthesized from the corresponding pyronochalcone in a similar manner.