A silica gel supported dual acidic ionic liquid: an efficient and recyclable heterogeneous catalyst for the one-pot synthesis of amidoalkyl naphthols

被引：145

作者：

Zhang, Qiang ^{[1
]}

Luo, Jun ^{[1
]}

Wei, Yunyang ^{[1
]}

机构：

[1] Nanjing Univ Sci & Technol, Sch Chem Engn, Nanjing 210094, Peoples R China

来源：

GREEN CHEMISTRY | 2010年 / 12卷 / 12期

关键词：

MULTICOMPONENT REACTIONS; REUSABLE CATALYST; 1-AMIDOALKYL-2-NAPHTHOLS; IMMOBILIZATION; ESTERIFICATION; ALKYLATION; SOLVENTS; OXIDE; MILD;

D O I：

10.1039/c0gc00472c

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A supported dual acidic ionic liquid catalyst was prepared via anchoring 3-sulfobutyl-1-(3-propyltriethoxysilane) imidazolium hydrogen sulfate onto silica gel by covalent bonds. The novel immobilized acidic ionic liquid effectively catalyzed the one-pot synthesis of amidoalkyl naphthols by the multicomponent condensation of aldehydes with 2-naphthol and amides under solvent-free conditions. Moreover, the catalyst could be recycled six-times without a significant loss of catalytic activity.

引用

页码：2246 / 2254

页数：9

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