Asymmetric epoxidation of alkenes with tert-butyl hydroperoxide catalyzed by a novel chiral complex of manganese(III) containing a sugar based tridentate Schiff-base ligand

被引：15

作者：

Chatterjee, Debabrata ^{[1
]}

Basak, Susan

Riahi, Abdelkhalek

Muzart, Jacques

机构：

[1] Cent Mech Engn Res Inst, Chem Sect, Durgapur 713209, India

[2] Univ Reims, CNRS, Unite Mixte Rech React Select & Applicat, F-51687 Reims 2, France

来源：

CATALYSIS COMMUNICATIONS | 2007年 / 8卷 / 09期

关键词：

manganese complex; sugar derived schifhbase ligand; t-BuOOH; alkene epoxidation; enantioselectivity;

D O I：

10.1016/j.catcom.2006.11.024

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 [Mn-III(TDL1*)(pic)(H2O)] (1) complex (where H2TDL1* = N-3,5-di-(t-butyl)salicylidine-D-glucosamine, pic(-) = picolinate) had been synthesized and characterized by analytical, spectral (UV-vis and IR), molar conductivity, magnetic moment and electrochemical studies. Complex 1 efficiently catalyzed the epoxidation of styrene, 4-chlorostyrene, 4-methylstyrene, 4-methoxystyrene, 1-methylcyclohexene and 1,2-dihydronaphthalene using aqueous tert-butyl hydroperoxide (t-BuOOH) as terminal oxidant. The selected alkenes were effectively converted to their organic epoxides in the 50-62% enantiomeric excess(ee) at ambient temperature. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：1345 / 1348

页数：4

共 47 条

[41] Isolation of a novel intermediate during unsymmetrical to symmetrical rearrangement of a tetradentate Schiff base ligand in a manganese(III) complex: Catalytic activity of the rearranged product towards alkene epoxidation
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[42] DINUCLEAR MANGANESE(III) COMPLEX WITH CYCLAM-BASED DODECADENTATE LIGAND BEARING SCHIFF-BASE PENDANTS (CYCLAM=1,4,8,11-TETRAAZACYCLOTETRADECANE)
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[47] Synthesis of a novel chiral Schiff base of (R,R)-11, 12-diamino-9,10-dihydro-9,10-ethanonanthracene and its application as ligand in Ti(IV) complex catalyzed asymmetric silylcyanation of aldehydes
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