Regiospecific Intramolecular Aldol Condensation Induced by Conjugate Addition of lithium dimethylcuprate to ζ-Oxo-α, β-enones preliminary communication [1]
作者:Ferdinand Näf、René Decorzant、Walter Thommen
DOI:10.1002/hlca.19750580635
日期:1975.7.16
react with lithium dimethylcuprate to give cyclic aldols such as hydroxydecalone 1 and hydroxyspiro[4.5]decanone 2 in a regio- and stereospecific manner. This new reaction, a combination of conjugate methyl addition to α, β-enones with directed intramolecular aldolisation, is suggested to proceed via either enoate anions, such as 8 and 11, or radical anions, such as 9 10 and 12 13, as intermediates
ζ-Oxo-α,β-烯酮与二甲基铜酸锂反应,以区域和立体有择的方式生成环状羟醛,例如羟基癸酮1和羟基螺[4.5]癸酮2。建议该新反应是将共轭甲基加成至α,β-烯酮并进行定向分子内醛醇缩合的反应,是通过烯酸酯阴离子(例如8和11)或自由基阴离子(例如9 10和12 13)作为中间体进行的。