Carboxylic acid-grafted mesoporous material and its high catalytic activity in one-pot three-component coupling reaction
作者： Ruth Gomes , Saikat Dutta , Asim Bhaumik
DOI: 10.1063/1.4897553
关键词:
摘要: A new carboxylic acid functionalized mesoporous organic polymer has been synthesized via in situ radical polymerization of divinylbenzene and acrylic using a silica as seed during the process under solvothermal conditions. The material MPDVAA-1 thoroughly characterized employing powder XRD, solid state 13C cross polarization magic angle spinning-nuclear magnetic resonance, FT-IR spectroscopy, N2 sorption, HR-TEM, NH3 temperature programmed desorption-thermal conductivity detector (TPD-TCD) analysis to understand its porosity, chemical environment, bonding, surface properties. was used catalyst for three comp onent Biginelli condensation between various aldehydes, β-keto esters, urea/thioureas give 3,4-dihydropyrimidine-2(1H)-ones. reactions were carried out conventional heating well solvent-free microwave irradiation components, both cases, proved be powerful, robust, reusable with high catalytic efficiency.
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