Enolates are a fundamental species for organic synthesis, and the aldol reaction is a representative reaction of enolates, where both the carbon-carbon bond formation and the creation of a functional hydroxy group for the further synthetic manipulations are achieved in a single event.1 As for the homologue, homoaldol reaction, synthetic equivalents of homoenolates are usually used as nucleophiles toward carbonyl compounds.2 We recently found that -halo carbonyl ...