Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, Georgia 30322, USA.
Org Lett. 2011 Aug 5;13(15):3984-7. doi: 10.1021/ol201503j. Epub 2011 Jun 27.
Silver triflate was found to be an efficient catalyst for the cyclopropenation of internal alkynes using donor-/acceptor-substituted diazo compounds as carbenoid precursors. Highly substituted cyclopropenes, which cannot be synthesized directly via rhodium(II)-catalyzed carbenoid chemistry, can now be readily accessed.
三氟甲磺酸银被发现是一种有效的催化剂，可用于使用供体/受体取代的重氮化合物作为碳烯前体的内炔烃的环丙烷化反应。现在可以很容易地获得无法通过铑（II）催化的碳烯化学直接合成的高取代的环丙烷。
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