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催化学报  2012 

AmmoniumDihydrogenPhosphateCatalystforOne-PotSynthesisof3,4-Dihydropyrimidin-2(1H)-ones

DOI: 10.1016/S1872-2067(11)60355-0, PP. 659-665

Keywords: 3,4-dihydropyrimidin-2-(1H)-one,ammoniumdihydrogenphosphate,solventfree,condensation

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Abstract:

?Aone-potthreecomponentBiginellicondensationofdifferentsubstitutedaromaticandaliphaticaldehydeswithethylacetoacetateandureatotherespective3,4-dihydropyrimidin-2-(1H)-onesundersolvent-freeconditionsthatissimple,effective,andenvironmentallyfriendlywasshown.Ammoniumdihydrogenphosphate(NH4H2PO4)wasusedasanon-toxic,inexpensive,andeasilyavailablecatalyst.Thefacilereactionconditionandsimpleisolationandpurificationproceduresofthismethodmakeitagoodoptionforthesynthesisofdihydropyrimidinones.

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