78648-13-2

Upstream product

• 78648-20-1 4,7-dihydroxy-5-methoxy-3-(4'-methoxyphenyl)coumarin 
• 1111-97-3 3-chloro-3-methylbut-1-yne 
• 78648-19-8 7-hydroxy-4,5-dimethoxy-3-(4'-methoxyphenyl)coumarin 

Downstream Products

• 28419-76-3 4-hydroxy-5-methoxy-3-(4-methoxyphenyl)-8,8-dimethyl-2H,8H-1-benzo-<1,2-b:3,4-b'>-dipyran-2-one 
• 78648-16-5 4,5-Dimethoxy-3-(4-methoxy-phenyl)-8,8-dimethyl-8H-pyrano[2,3-f]chromen-2-one 

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