Synthesis, crystal structure and application in regio- and stereoselective epoxidation of allylic alcohols of a titanium binaphthyl-bridged Schiff base complex

被引：21

作者：

Soriente, A ^{[1
]}

De Rosa, M ^{[1
]}

Lamberti, M ^{[1
]}

Tedesco, C ^{[1
]}

Scettri, A ^{[1
]}

Pellecchia, C ^{[1
]}

机构：

[1] Univ Salerno, Dipartimento Chim, I-84081 Baronissi, SA, Italy

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2005年 / 235卷 / 1-2期

关键词：

binaphthyl-bridged Schiff base ligands; epoxidation; Ti(IV) complexes; allylic alcohols; microwave reactions;

D O I：

10.1016/j.molcata.2005.03.012

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：

A new octahedral titanium binaphthyl-bridged Schiff base complex (1) was synthesized and characterized. Analysis by H-1 and C-13-NMR spectroscopy and X-ray crystallography indicated that the C-1-symmetric cis-beta isomer is preferentially formed as one of the two possible enantiomeric couples of diasteroisomers. The catalytic behaviour of the complex 1 toward epoxidation of allylic alcohols was investigated. Using only 0.5% mol of the complex 1 the epoxyalcohols are obtained in very high regio-, chemo- and diastercoselctive way by the MW exposure of the mixture in solvent free-conditions. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：253 / 259

页数：7