Synthesis, characterization, and application of poly(4-vinylpyridinium butane sulfonic acid) hydrogen sulfate as a novel poly(ionic liquid) and heterogeneous solid acid catalyst for the preparation of 1,8-dioxo-octahydroxanthenes

被引：15

作者：

Kiasat, Ali Reza ^{[1
]}

Mouradzadegun, Arash ^{[1
]}

Saghanezhad, Seyyed Jafar ^{[1
]}

机构：

[1] Shahid Chamran Univ, Dept Chem, Coll Sci, Ahvaz, Iran

来源：

RESEARCH ON CHEMICAL INTERMEDIATES | 2015年 / 41卷 / 01期

关键词：

Solvent-free; Dimedone; Poly(ionic liquid); Poly(4-vinylpyridine); Heterogeneous catalyst; ONE-POT; THIOCYANOHYDRINS; DIMEDONE;

D O I：

10.1007/s11164-013-1194-0

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Poly(4-vinylpyridinium butane sulfonic acid) hydrogen sulfate, P(4VPBSA)HSO4, a novel polymeric acidic catalyst, was easily prepared by reaction of cross-linked poly(4-vinylpyridine) with 1,4-butane sultone and further acidification of the catalyst with sulfuric acid. The catalyst was studied by FT-IR spectroscopy, scanning electron microscopy, and thermogravimetric analysis. The poly(ionic liquid) catalyst was shown to be an efficient dual acidic catalyst for one-pot preparation of 1,8-dioxo-octahydroxanthenes under solvent-free conditions. Reusability of the catalyst, easy work-up, eco-friendly reaction conditions, short reaction times, and high yields are some advantages of this procedure.

引用

页码：319 / 326

页数：8

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