The conjugate addition of higher-order organocuprates (Lipshutz reagents) at low temperature (−78°C) to α-methoxyenones (4) provides the corresponding β-substituted α-methoxy ketones (5) in 74-90% isolated yields.
在低温下的共轭加成高阶
有机铜(Lipshutz试剂)的(-78℃)至α-methoxyenones(4)提供了相应的β-α取代的甲氧基酮(5在74-90%的分离产率)。