57261-40-2

Upstream product

• 29373-14-6 2,2-dimethylchromane-5,7-diol 
• 104-47-2 p-methoxybenzylnitrile 

Downstream Products

• 76166-59-1 atalantoflavone 
• 63807-90-9 5-hydroxy-3(4'-hydroxy)phenyl-8,8-dimethyl-6,7-dihydro-4H,8H-benzo<1,2b:5,4b'>dipyran-4-one 
• 34086-52-7 5-hydroxy-3(4'-methoxy)phenyl-8,8-dimethyl-4H,8H-benzo<1,2b:5,6b'>dipyran-4-one 
• 27762-87-4 5-hydroxy-3(4'-methoxy)phenyl-8,8-dimethyl-4H,8H-benzo<1,2b:5,4b'>dipyran-4-one 
• 34086-56-1 5-methoxy-7-(4-methoxyphenyl)-2,2-dimethyl-2H,6H-benzo[1,2-b:5,4-b']-dipyran-6-one 
• 27763-00-4 5-hydroxy-3-(4'-methoxy3)phenyl-8,8-dimethyl-6,7-dihydro-4H,8H-benzo<1,2b:5,4b'>dipyran-4-one 
• 109517-68-2 5-hydroxy-3(4'-hydroxy)phenyl-8,8-dimethyl-9,10-dihydro-4H,8H-benzo<1,2b:5,6b'>dipyran-4-one 
• 114091-01-9 5-hydroxy-3-(4'-methoxy)phenyl-8,8-dimethyl-9,10-dihydro-4H,8H-benzo<1,2b:5,6b'>dipyran-4-one 
• 114091-00-8 5-hydroxy-3-(4'-methoxy)phenyl-8,8-dimethyl-9,10-dihydro-4H,8H-benzo<1,2b:5,6b'>dipyran-4-one-2-carboxylic acid 
• 114090-99-2 5-hydroxy-3-(4'-methoxy)phenyl-8,8-dimethyl-6,7-dihydro-4H,8H-benzo<1,2b:5,4b'>dipyran-4-one-2-carboxylic acid 
• 34086-50-5 alpinumisoflavone 
• 5304-64-3 1-(7-hydroxy-5-methoxy-2,2-dimethyl-chroman-6-yl)-2-(4-methoxy-phenyl)-ethanone 
• 5304-65-4 1-(5-hydroxy-7-methoxy-2,2-dimethyl-chroman-6-yl)-2-(4-methoxy-phenyl)-ethanone 
• 57261-42-4 1-(5,7-dimethoxy-2,2-dimethyl-chroman-6-yl)-2-(4-methoxy-phenyl)-ethanone 

Relevant academic research and scientific papers

Synthesis of Phenacylbenzodihydropyrans

Benzodihydropyrans (I-III) on reaction with phenacetonitriles (IVa-c) in the presence of zinc chloride and dry hydrogen chloride under Hoesch reaction conditions give 6-phenacylbenzodihydropyrans (Va-c) in case of I, 6-(VIa-c)- and 8-(VIIa-c)-phenacyl derivatives with II and 6-(VIIIa-c)-and 8-(IXa-c)-phenacyl derivatives and 6,8-diphenacyl derivatives (Xa-c) with III.