Regioselective Alkylation of Lithium Dienediolates of α,β-Unsaturated Carboxylic Acids
作者:Eva M. Brun、Salvador Gil、Ramón Mestres、Margarita Parra
DOI:10.1055/s-2000-6323
日期:——
Lithium carboxylic acids dienediolates are regioselectively alkylated at the α-carbon by reaction with tosylates derived from both primary and secondary alcohols. Both regio- and diastereoselectivity are improved when compared with those obtained in the corresponding alkylation with alkyl halides.