Expanding the useful range of ionic liquids: melting point depression of organic salts with carbon dioxide for biphasic catalytic reactions

被引：67

作者：

Scurto, Aaron M.

Leitner, Walter

机构：

[1] Rhein Westfal TH Aachen, Inst Tech & Makromol Chem, D-52074 Aachen, Germany

[2] Max Planck Inst Kohlenforsch, D-45470 Mulheim, Germany

[3] Univ Kansas, Dept Chem & Petr Engn, Lawrence, KS 66045 USA

[4] Univ Kansas, BSF ERC Ctr Environm Beneficial Catalysis, Lawrence, KS 66045 USA

来源：

CHEMICAL COMMUNICATIONS | 2006年 / 35期

关键词：

D O I：

10.1039/b606130c

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Large and previously unreported melting point depressions (even exceeding Delta T-m of 100 degrees C) were observed for simple ammonium and phosphonium salts in the presence of compressed CO2, bringing them well within the range of typical ionic liquids; possible applications include biphasic catalysis in IL/scCO(2) systems as demonstrated for rhodium complex catalyzed hydrogenation, hydroformylation, and hydroboration of 2-vinyl-naphthalene using a CO2-induced molten sample of [NBu4][BF4] as a catalyst phase at temperatures in the range of 55-75 degrees C, i.e. 100 degrees C below the normal melting point of the organic salt.

引用

页码：3681 / 3683

页数：3

共 22 条

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