Effective and Rapid Synthesis of Pyrido[2,3-d:6,5-d′]Dipyrimidines Catalyzed by a Mesoporous Recoverable Silica-Based Nanomaterial


A simple, rapid and effective protocol for the synthesis pyrido[2,3-d:6,5-d′]dipyrimidines has been developed via the one-pot multi-component reaction of arylaldehydes, 2-thiobarbituric acid and NH4OAc using nano-[SiO2-R-NMe2SO3H][Cl] as a mesoporous nanaocatalyst in solvent-free conditions. The remarkable features of this protocol include superiority relative to the reported methods in terms of two or more of these items: the reaction times, yields, the reaction temperature and conditions.

Effective and rapid synthesis of pyrido[2,3-d:6,5-d′]dipyrimidines catalyzed by a mesoporous recoverable silica-based nanomaterial.

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The authors thank Research Council of Payame Noor University for the support of this work.

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Correspondence to Alireza Kohzadian or Abdolkarim Zare.

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Kohzadian, A., Zare, A. Effective and Rapid Synthesis of Pyrido[2,3-d:6,5-d′]Dipyrimidines Catalyzed by a Mesoporous Recoverable Silica-Based Nanomaterial. Silicon 12, 1407–1415 (2020). https://doi.org/10.1007/s12633-019-00235-0

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  • Pyrido[2,3-d:6,5-d′]dipyrimidines. Nano-[SiO2-R-NMe2SO3H][cl]. Mesoporous nanocatalyst. Multi-component reaction. Solvent-free