期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 133, 期 2, 页码 191-193出版社
AMER CHEMICAL SOC
DOI: 10.1021/ja109732s
关键词
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资金
- MEC [Proyecto CTQ2008-00042/BQU, CSD2006-003]
- Junta de Andalucia [Proyecto P07-FQM-02745]
The reaction of 1-alkynes with acyl azides in the presence of [Tpm*Cu-,Cu-Br(NCMe)]BF4 [Tpm*(,Br) = tris(3,5-dimethyl-4-bromopyrazolyl)methane] as the catalyst provides 2,5-oxazoles in moderate to high yields. This is a novel transformation of the CuAAC type that constitutes a significant variation of the commonly observed [3 + 2] cycloaddition reaction to yield 1,2,3-triazoles.
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