期刊
TETRAHEDRON LETTERS
卷 54, 期 17, 页码 2199-2202出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2013.02.078
关键词
Pyrazolo[1,5-a]pyridine; N-Amino-2-alkynylpyridine; Thermal intramolecular cyclization; Melatonin receptor agonist
Thermal intramolecular cyclization of N-amino-2-alkynylpyridines was developed for facile and versatile synthesis of pyrazolo[1,5-a]pyridines. Simply heating N-amino-2-alkynylpyridines in acetic acid provided pyrazolo[1,5-a]pyridines in excellent yield. (C) 2013 Elsevier Ltd. All rights reserved.
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