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Imidazolium-based chiral ionic liquids: synthesis and application
被引:26
|作者:
Suzuki, Yumiko
[1
]
Wakatsuki, Junichiro
[2
]
Tsubaki, Mariko
[2
]
Sato, Masayuki
[2
]
机构:
[1] Sophia Univ, Fac Sci & Technol, Dept Mat & Life Sci, Chiyoda Ku, Tokyo 1028554, Japan
[2] Univ Shizuoka, Sch Pharmaceut Sci, Suruga Ku, Shizuoka 4228526, Japan
来源:
关键词:
Chiral ionic liquid;
Chiral solvent;
Imidazolium salt;
Michael addition;
MICHAEL ADDITION;
SOLVENTS;
D O I:
10.1016/j.tet.2013.09.017
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
Synthesis of chiral ionic liquids containing an imidazole nucleus and chiral centers on N-substituents is reported. [(2S,3S)-2,3-Dihydroxybutane-1,4-bis(3-butylimidazolium)]-[bis(trifluoromethanesulfonyl)amide](2) and [(4S,5S)-2-phenyl-1,3-dioxolane-4,5-bis(1-methylimidazolium)]-[bis(trifluoromethanesulfonyl)amide](2) induced enantioselectivity in the Michael addition of malonic esters to chalcones. (c) 2013 Elsevier Ltd. All rights reserved.
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页码:9690 / 9700
页数:11
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