Remarkable Reaction Rate and Excellent Enantioselective Direct α-Amination of Aldehydes with Azodicarboxylates Catalyzed by Pyrrolidinylcamphor-Derived Organocatalysts
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY(2010)
摘要
Remarkable reaction rate and excellent enantioselective direct alpha-amination of unmodified aldehydes with various azodicarboxylates was catalyzed by pyrrolidinylcamphor organocatalyst 2a (5 mol-%) to provide the desired aminated products with excellent chemical yields and high to excellent levels of enantioselectivity (up to > 99 % ee) at 0 degrees C in CH2Cl2.
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关键词
Amination,Asymmetric catalysis,Organocatalysis,Nitrogen heterocycles
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