22044-62-8

Upstream product

• 78648-02-9 7-hydroxy-8-iodo-4,5-dimethoxy-3-(3',4'-methylenedioxyphenyl)coumarin 
• 78647-99-1 4,7-dihydroxy-8-iodo-5-methoxy-3-(3',4'-methylenedioxyphenyl)coumarin 
• 78648-18-7 7-hydroxy-4,5-dimethoxy-3-(3',4'-methylenedioxyphenyl)coumarin 
• 78647-96-8 2,4-dihydroxy-3-iodo-6-methoxy-3',4'-methylenedioxydeoxybenzoin 
• 78648-17-6 4,7-dihydroxy-5-methoxy-3-(3',4'-methylenedioxyphenyl)coumarin 
• 55607-36-8 2,4-dihydroxy-6-methoxy-3',4'-methylenedioxy-deoxybenzoin 
• 78648-09-6 8-iodo-4,5-dimethoxy-3-(3',4'-methylenedioxyphenyl)-7-(1,1-dimethylprop-2-ynyloxy)coumarin 

Relevant academic research and scientific papers

Synthesis of Linear 3-Phenylpyranocoumarins: Synthesis of Robustin, Robustic Acid, and their Methyl Ethers

The linear 3-phenylpyranocoumarins, viz., robustin (5b; R4 = H), its methyl ether (5b; R4 = Me), robustic acid (5c; R4 = H), its methyl ether (5c; R4 = Me), 4-methoxy-3-phenylxanthyletin (5a; R4 = H), and its methyl ether (5a; R4 = Me), have been synthesi