Influence of enolate geometry on the stereochemistry of Michael additions of ketone enolates to α,β-unsaturated ketones
作者:David A Oare、Clayton H Heathcock
DOI:10.1016/s0040-4039(00)85424-6
日期:1986.1
Preformed lithium enolates of ketones react with acyclic α,β-unsaturated ketones to give 1,5-diketones in good chemical yields. A strong correlation exists between enolate geometry and product stereochemistry; enolates having the configuration provide anti addition products while enolates usually provide the syn diastereomers.
预先形成的酮的烯醇锂与无环的α,β-不饱和酮反应,以良好的化学收率得到1,5-二酮。烯醇的几何形状与产物立体化学之间存在很强的相关性。具有构型的烯醇化物提供抗加成产物,而烯醇化物通常提供顺式非对映异构体。