OSO4-catalyzed dihydroxylation of olefins in ionic liquid [emim]BF4:: a recoverable and reusable osmium

被引：37

作者：

Yanada, R ^{[1
]}

Takemoto, Y ^{[1
]}

机构：

[1] Kyoto Univ, Grad Sch Pharmaceut Sci, Sakyo Ku, Kyoto 6068501, Japan

来源：

TETRAHEDRON LETTERS | 2002年 / 43卷 / 38期

关键词：

OSO4; dihydroxylation; olefin; ionic liquid; emin]BF4;

D O I：

10.1016/S0040-4039(02)01461-2

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

We have demonstrated the usefulness of recoverable and reusable immobilized OsO4 in [emim]BF4 for dihydroxylation of several olefins. This approach is simple and practical. It should be noted that the volatility and toxicity of OsO4 are greatly suppressed when the ionic liquid [emim]BF4 is used. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：6849 / 6851

页数：3

共 26 条

[1] TEMPO-catalyzed aerobic oxidation of alcohols to aldehydes and ketones in ionic liquid [bmim][PF6] [J].

Ansari, IA ;

Gree, R .

ORGANIC LETTERS, 2002, 4 (09) :1507-1509

[2]

Choudary BM, 2001, ANGEW CHEM INT EDIT, V40, P4619, DOI 10.1002/1521-3773(20011217)40:24<4619::AID-ANIE4619>3.0.CO

[3]

2-U

[4] A new bifunctional catalyst for tandem Heck-asymmetric dihydroxylation of olefins [J].

Choudary, BM ;

Chowdari, NS ;

Jyothi, K ;

Kumar, NS ;

Kantam, ML .

CHEMICAL COMMUNICATIONS, 2002, (06) :586-587

[5] Catalytic asymmetric dihydroxylation of olefins with reusable OsO42- on ion-exchangers:: The scope and reactivity using various cooxidants [J].

Choudary, BM ;

Chowdari, NS ;

Jyothi, K ;

Kantam, ML .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2002, 124 (19) :5341-5349

[6] Catalytic asymmetric dihydroxylation of olefins with new catalysts:: The first example of heterogenization of OsO42- by ion-exchange technique [J].

Choudary, BM ;

Chowdari, NS ;

Kantam, ML ;

Raghavan, KV .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2001, 123 (37) :9220-9221

[7] Carbonylation of alkynols catalyzed by Pd(II)/2-PyPPh2 dissolved in organic solvents and in ionic liquids:: a facile entry to α-methylene γ- and δ-lactones [J].

Consorti, CS ;

Ebeling, G ;

Dupont, J .

TETRAHEDRON LETTERS, 2002, 43 (05) :753-755

[8]

Döbler C, 1999, ANGEW CHEM INT EDIT, V38, P3026

[9] A copper-free Sonogashira coupling reaction in ionic liquids and its application to a microflow system for efficient catalyst recycling [J].

Fukuyama, T ;

Shinmen, M ;

Nishitani, S ;

Sato, M ;

Ryu, I .

ORGANIC LETTERS, 2002, 4 (10) :1691-1694

[10] Osmium-catalyzed asymmetric dihydroxylation of olefins by H2O2 using a biomimetic flavin-based coupled catalytic system [J].

Jonsson, SY ;

Färnegårdh, K ;

Bäckvall, JE .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2001, 123 (07) :1365-1371

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