期刊
JOURNAL OF ORGANIC CHEMISTRY
卷 73, 期 7, 页码 2784-2791出版社
AMER CHEMICAL SOC
DOI: 10.1021/jo702720a
关键词
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Screening of a range of azolium salts, bases and solvents for reactivity indicates that triazolinylidenes, generated in situ with KHMDS in THF, promote the Steglich rearrangement of oxazolyl carbonates with high catalytic efficiency (typical reaction time 5 min at < 1.5 mol % NHC). This protocol shows wide substrate applicability, even allowing the efficient generation of vicinal quaternary centers. An improved experimental procedure is also described that allows a simplified one-pot reaction protocol to be employed with similarly high catalytic efficiency.
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