Conjugate Addition of 2- and 4-Pyridylcuprates: An Expeditious Asymmetric Synthesis of Natural (−)-Evoninic Acid
Alan C. Spivey,*† Lena Shukla,† and Judy F. Hayler
Org. Lett., 2007, 9 (5), pp 891–894
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http://dx.doi.org/10.1021/ol070011y