期刊
ORGANIC LETTERS
卷 16, 期 11, 页码 3122-3125出版社
AMER CHEMICAL SOC
DOI: 10.1021/ol501249h
关键词
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资金
- National Natural Science Foundation of China [21172170, 21225208]
- National Basic Research Program of China (973 Program) [2014CB745100]
A highly regioselective cycloaddition procedure of electron-deficient allenes with trifluorodiazoethane (CF3CHN2) is described. In absence of bases, the reaction proceeded smoothly to give 5-(trifluoromethyl)pyrazolines, whereas the utility of Et3N led to the formation of 3-(trifluoromethyl)pyrazoles.
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