Basic ionic liquid as catalyst for the rapid and green synthesis of substituted 2-amino-2-chromenes in aqueous media

被引:115
作者
Gong, Kai [1 ]
Wang, Hua-Lan [1 ]
Fang, Dong [1 ]
Liu, Zu-Liang [1 ]
机构
[1] Nanjing Univ Sci & Technol, Sch Chem Engn, Nanjing 210094, Peoples R China
关键词
functional ionic liquid; catalyze; 2-amino-2-chromenes; aqueous media;
D O I
10.1016/j.catcom.2007.07.010
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 basic functionalized ionic liquid, 1-butyl-3-methyl imidazolium hydroxide ([bmim]OH), catalyzed three-component condensation reaction of aromatic aldehydes, malononitrile and alpha- or beta-naphthol proceeded rapidly in water at reflux to afford corresponding 2-amino-2-chromenes in high yields. The greener protocol was found to be fairly general and the aqueous reaction media was reused in subsequent reactions with consistent activity. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码:650 / 653
页数:4
相关论文
共 29 条
[1]   Multicomponent reactions under clay catalysis [J].
Ballini, R ;
Bigi, F ;
Conforti, ML ;
De Santis, D ;
Maggi, R ;
Oppici, G ;
Sartori, G .
CATALYSIS TODAY, 2000, 60 (3-4) :305-309
[2]  
BLOXHAM J, 1994, HETEROCYCLES, V38, P399
[3]   Regioselective alkylation in ionic liquids [J].
Earle, MJ ;
McCormac, PB ;
Seddon, KR .
CHEMICAL COMMUNICATIONS, 1998, (20) :2245-2246
[4]  
[方东 FANG Dong], 2007, [化学试剂, Chemical Reagents], V29, P4
[5]   A green procedure for the protection of carbonyls catalyzed by novel task-specific room-temperature ionic liquid [J].
Fang Dong ;
Gong Kai ;
Shi Qunrong ;
Liu Zuliang .
CATALYSIS COMMUNICATIONS, 2007, 8 (10) :1463-1466
[6]   Brlnsted acidic ionic liquids and their use as dual solvent-catalysts for Fischer esterifications [J].
Fang, Dong ;
Zhou, Xin-Li ;
Ye, Zhi-Wen ;
Liu, Zu-Liang .
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2006, 45 (24) :7982-7984
[7]  
Grieco P.A., 1998, Organic synthesis in water
[8]  
HAFEZ EAA, 1987, HETEROCYCLES, V26, P903
[9]   Knoevenagel condensation reactions in an ionic liquid [J].
Hangarge, RV ;
Jarikote, DV ;
Shingare, MS .
GREEN CHEMISTRY, 2002, 4 (03) :266-268
[10]   Aqua mediated synthesis of substituted 2-amino-4H-chromenes and in vitro study as antibacterial agents [J].
Kidwai, M ;
Saxena, S ;
Khan, MKR ;
Thukral, SS .
BIOORGANIC & MEDICINAL CHEMISTRY LETTERS, 2005, 15 (19) :4295-4298