1-Substituted -1-alkenyl phosphates, readily prepared from -alkyl ketones and sodium diethyl phosphite, were treated with copper(II) bromide-lithium aluminium hydride reagent at −30 °C to generate -alkyl ketone aluminium enolates, which underwent the aldol reaction with various aldehydes to give the corresponding α-fluoro-α--alkyl β-hydroxy ketones in fairly good to excellent yields.
由-烷基酮和
亚磷酸二乙酯钠制得的1-取代的-1-链烯基
磷酸酯在-30°C下用
溴化铜(II)-
氢化铝锂铝试剂处理,生成-烷基酮烯醇铝,然后对其进行醛醇缩合与各种醛反应,以相当好的收率得到相应的α-
氟代-α-烷基-β-羟基酮。