Verjuice as a green and bio-degradable solvent/catalyst for facile and eco-friendly synthesis of 5-arylmethylenepyrimidine-2,4,6-trione, pyrano[2,3-d]pyrimidinone and pyrimido[4,5-d]pyrimidinone derivatives
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DOI: 10.1007/s13738-018-1565-y
Abstract: Verjuice (unripe grape juice), a natural mixture of organic acids, which is identified by pH-metric and TGA analysis, is efficiently used for the promotion of the synthesis of 5-arylmethylenepyrimidine-2,4,6-triones, via Knovenagel condensation reaction between barbituric… read more here.
Keywords: pyrano pyrimidinone; pyrimidinone derivatives; reaction; pyrimidinone ... See more keywords
A choline chloride-based deep eutectic solvent promoted three-component synthesis of tetrahydrobenzo[b]pyran and pyrano[2,3-d] pyrimidinone (thione) derivatives
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DOI: 10.1016/j.molstruc.2019.127652
Abstract: Abstract An efficient one-pot method for the synthesis of tetrahydrobenzo[b]pyran and pyrano[2,3-d]pyrimidinone (thione) derivatives through a three-component reaction between aldehydes, malononitrile and enolizable C–H activated acidic compounds using a new deep eutectic solvent made of… read more here.
Keywords: pyrano pyrimidinone; synthesis tetrahydrobenzo; pyrimidinone thione; thione derivatives ... See more keywords