文献类型：期刊文献

英文题名：Ultra-high concentrations of amino group functionalized nanoporous polymeric solid bases: Preparation, characterization and catalytic applications

作者：Zhang, Bin[2];Liu, Chen[1];Wang, Lingjing[1];Yi, Xianfeng[3];Zheng, Anmin[3];Deng, Wenshu[1];Qi, Chenze[1];Liu, Fujian[1]

机构：[1]Shaoxing Univ, Dept Chem, Shaoxing 312000, Peoples R China;[2]Zhejiang Pharmaceut Coll, Ningbo 315000, Zhejiang, Peoples R China;[3]Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan Ctr Magnet Resonance, Wuhan 430071, Peoples R China

年份：2015

卷号：68

起止页码：25

外文期刊名：CATALYSIS COMMUNICATIONS

收录：SCI-EXPANDED(收录号：WOS:000356991100006)、、EI(收录号：20151800802956)、Scopus(收录号：2-s2.0-84928574023)、WOS

基金：This work was supported by the National Natural Science Foundation of China (21203122), the Natural Science Foundation of Zhejiang Province (LY15B030002), the Foundation of Science Technology Department of Zhejiang Province (2013C31030) and the Foundation of State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics (T151303).

语种：英文

外文关键词：Solid bases; Nanoporous polymers; Solvothermal synthesis; Knoevenagel condensation; Wettability

外文摘要：We report here that the amino-group functionalized nanoporous polydivinylbenzene (PDVB-2.0-NH2, PDVB-NH2), acts as an efficient solid base for catalyzing Knoevenagel condensation, which could be synthesized from nitration of nanoporous polydivinylbenzene (PDVB), reduction in the mixture containing SnCl2 and HCl, and activated with isopropylamine. The resultant solid bases of PDVB-2.0-NH2 and PDVB-NH2 have large BET surface areas, abundant nanopores, controlled hydrophobic network and ultra-high concentrations of the amino group. The above characteristics result in their excellent activities and good recyclability for catalyzing Knoevenagel condensation of various aldehydes with malononitrile, much better than those of commercially basic resin of Amberlite-400 and Amberlite-910, which was as comparable as that of the homogeneously strong base of CaO. This work develops efficient nanoporous polymeric solid bases with controllable surface characteristics and ultra high concentrations of basic sites. (C) 2015 Elsevier B.V. All rights reserved.