Microwave-assisted novel synthesis of amino-thieno[3,2-b]pyridines under solvent-free conditions
摘要:
In the presence of a catalytic amount of ytterbium(III) triflate and under microwave irradiation, mixtures of 2-amino-3-thiophenecarbonitriles, ketones, and silica gel afforded smoothly the corresponding aminothieno[2,3-b]pyridine derivatives in one step. A wide variety of ketones were tested under these conditions. The reactions proceeded rapidly and afforded the desired products in good to excellent yields. (C) 2010 Elsevier Ltd. All rights reserved.
Microwave-assisted novel synthesis of amino-thieno[3,2-b]pyridines under solvent-free conditions
作者:Weike Su、Shaozheng Guo、Zhi Hong、Ren’er Chen
DOI:10.1016/j.tetlet.2010.08.075
日期:2010.10
In the presence of a catalytic amount of ytterbium(III) triflate and under microwave irradiation, mixtures of 2-amino-3-thiophenecarbonitriles, ketones, and silica gel afforded smoothly the corresponding aminothieno[2,3-b]pyridine derivatives in one step. A wide variety of ketones were tested under these conditions. The reactions proceeded rapidly and afforded the desired products in good to excellent yields. (C) 2010 Elsevier Ltd. All rights reserved.