Novel gallium and indium salts of the 12-tungstophosphoric acid: Synthesis, characterization and catalytic properties

被引：9

作者：

Filek, Urszula ^{[1
]}

Mucha, Dariusz ^{[1
]}

Hunger, Michael ^{[2
]}

Sulikowski, Bogdan ^{[1
]}

机构：

[1] Polish Acad Sci, Jerzy Haber Inst Catalysis & Surface Chem, PL-30239 Krakow, Poland

[2] Univ Stuttgart, Inst Chem Technol, D-70550 Stuttgart, Germany

来源：

CATALYSIS COMMUNICATIONS | 2013年 / 30卷

关键词：

GaPW12O40; InPW-O-12(40); Etherification; 1-phenylethanol; C-1-C-4; alkanols; Unsymmetrical ethers; UNSYMMETRICAL ETHERS; HETEROPOLY ACIDS; LEWIS-ACID; MAS-NMR; H3PW12O40; SITES; ENCAPSULATION; EFFICIENT; ALPW12O40; ZEOLITE;

D O I：

10.1016/j.catcom.2012.10.012

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：

The objective of this study was the preparation, characterization and testing of the catalytic properties of the GaPW12O40 and InPW12O40 salts of 12-tungstophosphoric heteropolyacid (HPW). The samples were characterized by XRD, IR, SEM, and P-31 and H-1 MAS NMR spectroscopy. The acid properties of the solids were directly accounted for by applying H-1 MAS NMR. The salts were screened in the etherification of 1-phenylethanol with C-1-C-4 alkanols in dichloromethane as a solvent to yield the corresponding C6H5-CH(OR)-CH3 unsymmetrical ethers. In comparison with pure HPW, the new salts revealed generally a higher selectivity of ethers formation at 65 degrees C. (c) 2012 Elsevier B.V. All rights reserved.

引用

页码：19 / 22

页数：4

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