Conjugate addition of 2-and 4-pyridylcuprates: an expeditious asymmetric synthesis of natural (-)-evoninic acid

AC Spivey, L Shukla, JF Hayler

Index: Organic Letters, , vol. 9, # 5 p. 891 - 894

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Citation Number: 29

Abstract

... Volume: Page: ... Organic Letters. ... 8a → 9a, 80% yield, Table 1, entry 1), (E)-methyl crotonate (8b → 9b, 79% yield, Table 1, entry 2), methyl tiglate (8c → 9c, 69% yield, Table 1, entry 3), and (E)-3-penten-2-one (8d → 9f, 80% yield, Table 1, entry 9). By contrast ...