Decoding the reaction mechanism of the cyclocondensation of ethyl acetate2‐oxo‐2‐(4‐oxo‐4H‐pyrido [1.2‐a] pyrimidin‐3‐yl) polyazaheterocycle and ethylenediamine using bond evolution theory
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DOI: 10.1002/jcc.26853
Abstract: We investigated the flow of electron density along the cyclocondensation reaction between ethyl acetate 2‐oxo‐2‐(4‐oxo‐4H‐pyrido[1.2‐a]pyrimidin‐3‐yl) polyazaheterocycle (1) and ethylenediamine (2) at the ωB97XD/6–311++G(d,p)computational method within of bond evolution theory (BET). The exploration of potential energy… read more here.
Keywords: oxo; reaction; oxo pyrido; pyrido pyrimidin ... See more keywords
β-Cyclodextrin as a Biomimetic Catalyst for the Efficient Synthesis of 4-Oxo-pyrido[1,2-a] Pyrimidine-3-Carbonitrile in Aqueous Medium
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DOI: 10.1007/s10562-017-1983-y
Abstract: Supramolecular β-cyclodextrin as a highly efficient, biodegradable, and reusable catalyst for the synthesis of 4-oxo-4H-pyrido[1,2-a]pyrimidine-3-carbonitrile derivatives (4a–s) is investigated via a cascade reaction of aldehydes, malanonitrile and 2-aminopyridine in aqueous medium at 65 °C under ultrasonication.… read more here.
Keywords: oxo pyrido; pyrimidine carbonitrile; pyrido pyrimidine; catalyst ... See more keywords