A triazine-based porous organic polymer: a novel heterogeneous basic organocatalyst for facile one-pot synthesis of 2-amino-4H-chromenes

被引：98

作者：

Kundu, Sudipta K. ^{[1
]}

Bhaumik, Asim ^{[1
]}

机构：

[1] Indian Assoc Cultivat Sci, Dept Mat Sci, Jadavpur 700032, India

来源：

RSC ADVANCES | 2015年 / 5卷 / 41期

关键词：

AQUA MEDIATED SYNTHESIS; MICROPOROUS POLYMER; SUBSTITUTED; 2-AMINO-4H-CHROMENES; MULTICOMPONENT REACTIONS; EFFICIENT CATALYST; IONIC LIQUID; 2-AMINO-2-CHROMENES; DERIVATIVES; CONVENIENT; SOLVENT;

D O I：

10.1039/c5ra00951k

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A new triazine-based porous organic polymer TPOP-2 has been synthesized through the reaction between cyanuric chloride and tris(2-aminoethyl) amine in anhydrous 1,4-dioxane under N-2 atmosphere. The porous polymer has been characterized by powder X-ray diffraction, N-2 sorption, HR TEM, FE SEM, C-13 CPMAS NMR, CO2-TPD, TG-DTA and FT IR spectroscopic tools. Due to the high density of amine and triazine functional groups, this porous polymer is N-rich and possesses excellent surface basicity, and is utilized as a heterogeneous metal-free basic organocatalyst for the one-pot three-component condensation reaction of aromatic aldehyde, activated phenols (resorcinol and 2-naphthol) and malononitrile for the synthesis of 2-amino-chromenes under solvent-free or aqueous conditions. The ease of catalyst synthesis and its efficient use for five consecutive cycles without noticeable loss in catalytic activity suggest significant future potential of this new N-rich porous organic polymer material for a wide range of base catalyzed reactions.

引用

页码：32730 / 32739

页数：10

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