Synthesis and Characterization of Silica-Polymer Nanocomposites Functionalized with Piperazine for the Synthesis of β-Nitro Alcohols

被引：12

作者：

Sachdev, Divya ^{[1
]}

Dubey, Amit ^{[1
]}

机构：

[1] Birla Inst Technol & Sci, Chem Grp, Pilani 333031, Rajasthan, India

来源：

CATALYSIS LETTERS | 2011年 / 141卷 / 10期

关键词：

Mesoporous; Nitroaldol; Piperazine; Nanocomposites; SOLID BASE CATALYSTS; LIQUID-PHASE OXIDATIONS; HENRY REACTION; HETEROGENEOUS CATALYSIS; MESOPOROUS SILICA; ORGANIC-SYNTHESIS; ALDEHYDES; SYSTEMS; DESIGN;

D O I：

10.1007/s10562-011-0643-x

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In order to compare the activity and selectivity for the synthesis of beta-nitro alcohols, piperazine was functionalized directly and after surface modification into the ordered mesoporous SBA-15 framework. The materials were characterized by powder X-ray diffraction, N-2-adsorption-desorption isotherm, FT-IR, SS-NMR and scanning electron microscopy. The catalyst synthesized via surface modification under solvent free conditions showed very high activity and selectivity of beta-nitro alcohols compared to the one synthesized by direct functionalization of SBA-15. Finally the possible reaction pathways were explained mechanistically.

引用

页码：1548 / 1556

页数：9

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