Novel method for generation of an organotin enolate by the cleavage of diketene with bis(tributyltin) oxide, and its Michael reactions
Abstract
Generation of a novel type of organotin enolate has been accomplished by the regioselective ring cleavage of diketene with bis(tributyltin) oxide; the enolate afforded the first example of Michael addition in reactions using organotin(IV) enolates.