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Importance of Hybrid Catalysts toward the Synthesis of 5 H -Pyrano[2,3- d ]pyrimidine-2-ones/2,4-diones (Thiones).

Mehul P ParmarRuturajsinh M ValaHitendra M Patel
Published in: ACS omega (2023)
The pyranopyrimidine core is a key precursor for medicinal and pharmaceutical industries due to its broader synthetic applications as well as its bioavailability. Among its four possible isomers, we found that 5 H -pyrano[2,3- d ]pyrimidine scaffolds have a wide range of applicability, and in recent years, they have been intensively investigated, but the development of the main core is found to be more challenging due to its structural existence. In this review article, we cover all of the synthetic pathways that are employed for the development of substituted 4-aryl-octahydropyrano/hexahydrofuro[2,3- d ]pyrimidin-2-one (thiones) and 5-aryl-substituted pyrano[2,3- d ]pyrimidindione (2-thiones) derivatives through a one-pot multicomponent reaction using diversified hybrid catalysts such as organocatalysts, metal catalysts, ionic liquid catalysts, nanocatalysts, green solvents, catalyst-/solvent-free conditions, and miscellaneous catalysts as well as the mechanism and recyclability of the catalysts. This review mainly focuses on the application of hybrid catalysts (from 1992 to 2022) for the synthesis of 5 H -pyrano[2,3- d ]pyrimidine scaffolds. This review will definitely attract the world's leading researchers to utilize broader catalytic applications for the development of lead molecules.
Keyphrases
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