143885-67-0

Upstream product

• 125142-15-6 Acetic acid 7-methoxy-2,2-dimethyl-chroman-5-yl ester 
• 32550-59-7 6-Acetyl-5-hydroxy-7-methoxy-3,4-dihydro-2,2-dimethyl-2H<1>benzopyran 
• 120-14-9 3,4-dimethoxy-benzaldehyde 

Downstream Products

• 97911-92-7 (E)-1-(5-Benzyloxy-7-methoxy-2,2-dimethyl-chroman-6-yl)-3-(3,4-dimethoxy-phenyl)-propenone 
• 97911-98-3 (5-Benzyloxy-7-methoxy-2,2-dimethyl-chroman-6-yl)-[3-(3,4-dimethoxy-phenyl)-oxiranyl]-methanone 
• 97911-08-5 3-(3',4'-Dimethoxy)phenyl-5-hydroxy-8,8-dimethyl-9,10-dihydro-4H,8H-benzo<1,2-b; 5,6-b'>dipyran-4-one 
• 72456-01-0 3-(3,4-Dimethoxy-phenyl)-5-hydroxy-8,8-dimethyl-8H-pyrano[2,3-f]chromen-4-one 

Relevant academic research and scientific papers

A facile synthesis of acetyl-hydroxy-2, 2-dimethylchromans and 2,2- dimethyl-2H-3,4-dihydropyranoflavanones - Dihydro mixtecacin, atalantoflavone dimethyl ether and racemoflavone dimethyl ether

Synthesis of acetyl-hydroxy-2, 2-dimethyl chromans by thermal-Fries rearrangement of acetoxy-2, 2-dimethylchromans has been described. The reaction of acetyl-hydroxy chromans (2, 4 and 6) with aryl aldehyde in the presence of aqueous ethanolic potassium h

Boron Trifluoride Etherate Catalysed Rearrangement of Dihydropyranochalcone Epoxides: Synthesis of Dihydropyranoisoflavones and Their Dehydro-analogs

6-Acetyl-7-hydroxy-2,2-dimethylchroman (I) and 6-acetyl-7-methoxy-2,2-dimethylchroman (II) on condensation with the arylaldehydes (IIIa-d) give the dihydropyranochalcones (IVa-f).The O-benzylated chalcones (Va-f) are oxidised with alkaline hydrogen peroxi