Oxo-Rhenium( V) Complexes Containing Heterocyclic Ligands as Catalysts for the Reduction of Sulfoxides

被引：43

作者：

Sousa, Sara C. A. ^{[1
]}

Bernardo, Joana R. ^{[1
]}

Wolff, Mariusz ^{[2
]}

Machura, Barbara ^{[2
]}

Fernandes, Ana C. ^{[1
]}

机构：

[1] Univ Lisbon, Inst Super Tecn, Ctr Quim Estrutural, P-1049001 Lisbon, Portugal

[2] Silesian Univ, Inst Chem, Dept Crystallog, PL-40006 Katowice, Poland

来源：

EUROPEAN JOURNAL OF ORGANIC CHEMISTRY | 2014年 / 2014卷 / 09期

关键词：

Synthetic methods; Homogeneous catalysis; Reduction; Sulfoxides; Rhenium; Silanes; Boranes; OXORHENIUM COMPLEXES; X-RAY; SPECTROSCOPIC CHARACTERIZATION; CHEMOSELECTIVE REDUCTION; HIGHLY EFFICIENT; SYSTEM; DEOXYGENATION; MOLYBDENUM; ACTIVATION; SULFIDES;

D O I：

10.1002/ejoc.201301057

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

This work reports the catalytic activity of a large variety of oxo-rhenium(V) complexes (1 mol-%) containing the ligands 2-(2-hydroxy-5-methylphenyl)benzotriazole (Hhmpbta), 2-(2-hydroxyphenyl)benzothiazole (Hhpbt), 2-(2-hydroxyphenyl)benzoxazole (Hhpbo), and 2-(2-hydroxyphenyl)-1H-benzimidazole (Hhpbi) in the deoxygenation of sulfoxides with silanes or boranes as the reducing agents. In general, all of the complexes are excellent catalysts, although the PhSiH3/[ReOBr2(hmpbta)(PPh3)] and pinacolborane/[ReOBr2(hmpbta)(PPh3)] systems are the most efficient for the reduction of aromatic and aliphatic sulfoxides and tolerate different functional groups.

引用

页码：1855 / 1859

页数：5

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