Microwave-assisted synthesis of camphor-derived chiral imidazolium ionic liquids and their application in diastereoselective Diels-Alder reaction

被引:32
作者
Bica, Katharina
Gmeiner, Guenter
Reichel, Christian
Lendl, Bernhard
Gaertner, Peter
机构
[1] Vienna Univ Technol, Inst Appl Synth Chem, A-1060 Vienna, Austria
[2] ARC Seibersdorf Res GmbH, A-2444 Seibersdorf, Austria
[3] Vienna Univ Technol, Inst Chem Technol & Analyt, A-1060 Vienna, Austria
来源
SYNTHESIS-STUTTGART | 2007年 / 9卷 / 09期
关键词
ionic liquids; microwave synthesis; imidazolium salts; Diels-Alder reaction; diastereoselectivity;
D O I
10.1055/s-2007-966018
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Starting from cheap chiral pool precursors camphorsulfonic acid and camphene, several imidazolium ionic liquids were synthesized in high overall yield. Both thermal and microwave-assisted synthesis was used in the quaternization step to obtain new chiral ionic liquids (CILs) bearing a bornyl structural motif as cation. Furthermore, these CILs were used as solvent in the Diels-Alder reaction of acrylic acid and cyclopentadiene and showed good yields and diastereoselectivities.
引用
收藏
页码:1333 / 1338
页数:6
相关论文
共 25 条
[1]   A STABLE CRYSTALLINE CARBENE [J].
ARDUENGO, AJ ;
HARLOW, RL ;
KLINE, M .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1991, 113 (01) :361-363
[2]   Induction of smectic layering in nematic liquid crystals using immiscible components .1. Laterally attached side-chain liquid crystalline poly(norbornene)s and their low molar mass analogs with hydrocarbon/fluorocarbon substituents [J].
Arehart, SV ;
Pugh, C .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1997, 119 (13) :3027-3037
[3]   RAMAN SPECTRA OF TETRAHALO-ANIONS OF FE3,MN2,FE2,CU2 AND ZN2 [J].
AVERY, JS ;
BURBRIDGE, CD ;
GOODGAME, DM .
SPECTROCHIMICA ACTA PART A-MOLECULAR SPECTROSCOPY, 1968, A 24 (11) :1721-+
[4]   Chiral ionic liquids, a renewal for the chemistry of chiral solvents?: Design, synthesis and applications for chiral recognition and asymmetric synthesis [J].
Baudequin, C ;
Brégeon, D ;
Levillain, J ;
Guillen, F ;
Plaquevent, JC ;
Gaumont, AC .
TETRAHEDRON-ASYMMETRY, 2005, 16 (24) :3921-3945
[5]   Meisenheimer rearrangements of N-allyl 2-azabornane derivatives [J].
Buston, JEH ;
Coldham, I ;
Mulholland, KR .
JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 1, 1999, (16) :2327-2334
[6]   Chiral ionic liquids: Synthesis and applications [J].
Ding, J ;
Armstrong, DW .
CHIRALITY, 2005, 17 (05) :281-292
[7]   Diels-Alder reactions in ionic liquids - A safe recyclable alternative to lithium perchlorate-diethyl ether mixtures [J].
Earle, MJ ;
McCormac, PB ;
Seddon, KR .
GREEN CHEMISTRY, 1999, 1 (01) :23-25
[9]   Ionic liquids incorporating camphorsulfonamide units for the Ti-promoted asymmetric diethylzinc addition to benzaldehyde [J].
Gadenne, B ;
Hesemann, P ;
Moreau, JJE .
TETRAHEDRON LETTERS, 2004, 45 (44) :8157-8160
[10]   Discovery of a magnetic ionic liquid [bmim]FeCl4 [J].
Hayashi, S ;
Hamaguchi, HO .
CHEMISTRY LETTERS, 2004, 33 (12) :1590-1591