Copper-catalyzed trifluoromethylation via oxidative sp(3) C-H activation at the alpha-position of nitrogen in tetrahydroisoguinoline derivatives using DDQ and Ruppert-Prakash reagent has been successfully achieved. The reaction of various amines gave the corresponding trifluoromethylated products in 15-90% yields under mild conditions. (C) 2011 Elsevier Ltd. All rights reserved.
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Georgetown Univ, Dept Chem, Washington, DC 20057 USA
Michigan State Univ, Dept Chem, E Lansing, MI 48824 USAGeorgetown Univ, Dept Chem, Washington, DC 20057 USA
Chen, Ting-An
Staples, Richard J.
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Michigan State Univ, Dept Chem, E Lansing, MI 48824 USAGeorgetown Univ, Dept Chem, Washington, DC 20057 USA
Staples, Richard J.
Warren, Timothy H.
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Michigan State Univ, Dept Chem, E Lansing, MI 48824 USAGeorgetown Univ, Dept Chem, Washington, DC 20057 USA