Chehab, Soukaina published the artcileA facile and efficient synthesis of tetrahydrobenzo[b]pyrans and dihydropyrano[4,3-b]pyrans derivatives using phosphate fertilizers MAP, DAP, and TSP as heterogeneous catalysts, Category: isoquinoline, the main research area is benzaldehyde malononitrile dimethylcyclohexanedione heterogeneous catalyst three component condensation; tetrahydrobenzopyran preparation green chem; hydroxymethylpyranone benzaldehyde malononitrile heterogeneous catalyst three component condensation; dihydropyranopyran preparation green chem.
A simple and efficient one-pot synthesis of tetrahydrobenzo[b]pyrans and dihydropyrano[4,3-b]pyrans was described. These reactions were realized through a three-component condensation of aromatic aldehydes, malononitrile, and 5,5-dimethyl-1,3-cyclohexanedione or 4-hydroxy-6-methylpyran-2-one using phosphate fertilizers monoammonium phosphate, NH4(H2PO4)2, (MAP), diammonium phosphate, (NH4)2(HPO4), (DAP), and triple superphosphate, Ca(H2PO4)2.H2O, (TSP) as heterogeneous catalysts. Under optimal reaction conditions, these fertilizers showed an excellent catalytic activity. Indeed, the tetrahydrobenzo[b]pyrans and dihydropyrano[4,3-b]pyrans were obtained with good yields in short reaction times. Also, these fertilizers was reused at least four times without significant loss of their catalytic activity. Therefore, their application contributed to the development of green chem.
Journal of the Iranian Chemical Society published new progress about Benzaldehydes Role: RCT (Reactant), RACT (Reactant or Reagent). 86-51-1 belongs to class isoquinoline, name is 2,3-Dimethoxybenzaldehyde, and the molecular formula is C9H10O3, Category: isoquinoline.
Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem