Selektive Synthesen mit Organometallen II: Metallierung und Abwandlung funktionell substituierter Alkene

J Hartmann, R Muthukrishnan…

Index: Hartmann,J. et al. Helvetica Chimica Acta, 1974 , vol. 57, p. 2261 - 2275

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Citation Number: 60

Abstract

Summary. 1, 4-Dienes, vinyl ethers, allyl ethers, allyl thioethers and propene-thiolates are efficiently metalated by butyllithium in the presence of an activator such as potassium t- butoxide. Since the solvent, the counter-ion or the temperature may be varied before subsequent treatment with an electrophilic reagent, the critical ratio of direct us. vinylogous attack (substitution at the K-or y-position, respectively) can usually be adjusted within ...