A efficient and easy method for preparation of (1-butyl-3-methyl-imidazolium hydrogen sulphate) ionic liquid using sodium bisulphate in place of concentrated sulphuric acid by microwave irradiation had been developed by us with manifold reduction in time. Further, this acidic room temperature ionic liquid has been exploited for the synthesis of coumarins under microwave irradiation and solventless conditions in short duration of time with quantitative yields, for the first time. (C) 2004 Elsevier B.V. All rights reserved.
机构:
Pohang Univ Sci & Technol, Div Mol & Life Sci, Dept Chem, Pohang 790784, Kyungbuk, South KoreaPohang Univ Sci & Technol, Div Mol & Life Sci, Dept Chem, Pohang 790784, Kyungbuk, South Korea
Lee, JK
Kim, MJ
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Pohang Univ Sci & Technol, Div Mol & Life Sci, Dept Chem, Pohang 790784, Kyungbuk, South KoreaPohang Univ Sci & Technol, Div Mol & Life Sci, Dept Chem, Pohang 790784, Kyungbuk, South Korea
机构:
Pohang Univ Sci & Technol, Div Mol & Life Sci, Dept Chem, Pohang 790784, Kyungbuk, South KoreaPohang Univ Sci & Technol, Div Mol & Life Sci, Dept Chem, Pohang 790784, Kyungbuk, South Korea
Lee, JK
Kim, MJ
论文数: 0引用数: 0
h-index: 0
机构:
Pohang Univ Sci & Technol, Div Mol & Life Sci, Dept Chem, Pohang 790784, Kyungbuk, South KoreaPohang Univ Sci & Technol, Div Mol & Life Sci, Dept Chem, Pohang 790784, Kyungbuk, South Korea