α-Arylation of ketones by aryllead triacetates. Effect of methyl and phenyl substitution at the α position
作者:Jacqueline Morgan、John T. Pinhey、Bruce A. Rowe
DOI:10.1039/a607543f
日期:——
An examination of the α-arylation of a number of
ketones and their enolate salts by p-methoxyphenyllead
triacetate provides further evidence for a very marked
selectivity in the arylation reaction. It is found that the
reaction proceeds well at tertiary α-carbons and at
secondary centres activated by the presence of a phenyl group,
but fails where the secondary centre is unactivated and at
primary α-carbons.
对多种酮及其烯醇盐与对甲氧基苯基三乙酸铅的α-芳基化反应的研究提供了进一步的证据,表明该芳基化反应具有显著的选择性。研究发现,该反应在三级α-碳位和受到苯基取代所激活的二级中心进行良好,但在未被激活的二级中心和一级α-碳位时则失败。