期刊
TETRAHEDRON
卷 69, 期 15, 页码 3167-3181出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2013.02.069
关键词
Sonogashira coupling; Bromothiophenes; Terminal alkynes; Thienyl acetylenes; Thieno[3,2-b]-; [2,3-c]-; and [3,2-c]pyridones
The coupling of bromothiophenes with terminal alkynes using triethylamine or diisopropyl amine under Sonogashira conditions (PdCl2(PPh3)(2), Cup followed by subsequent addition of amines or ammonium to the intermediate thienyl acetylenes represents a novel access to a wide range of thieno[3,2-b]-, [2,3-c]-, and [3,2-c]pyridones under basic conditions and in excellent yields. (C) 2013 Elsevier Ltd. All rights reserved.
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