A facile, solvent free, ecoffiendly approach for the synthesis of 2-amino-3(ethylcarboxy)-4,6-disubstituted pyridine 4 and pyrazolo[3,4-b]pyridines 6 is herein described employing neat reaction conditions under microwave irradiation. This solventless methodology is environmentally benign as it completely eliminates the use of solvent from the reaction procedure. The observed reaction rate enhancement and high yield of products are due to the neat reaction conditions coupled with microwaves (MWs).
机构:
Nankai Univ, Res Inst Elementoorgan Chem, State Key Lab Elementoorgan Chem, Tianjin 300071, Peoples R ChinaNankai Univ, Res Inst Elementoorgan Chem, State Key Lab Elementoorgan Chem, Tianjin 300071, Peoples R China
Zhao, WG
Li, ZM
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机构:
Nankai Univ, Res Inst Elementoorgan Chem, State Key Lab Elementoorgan Chem, Tianjin 300071, Peoples R ChinaNankai Univ, Res Inst Elementoorgan Chem, State Key Lab Elementoorgan Chem, Tianjin 300071, Peoples R China
Li, ZM
Yuan, DK
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Nankai Univ, Res Inst Elementoorgan Chem, State Key Lab Elementoorgan Chem, Tianjin 300071, Peoples R ChinaNankai Univ, Res Inst Elementoorgan Chem, State Key Lab Elementoorgan Chem, Tianjin 300071, Peoples R China