Persistent guaiazulene arylmethylium ions as electrophilic traps for metal enolates

Abstract

Guaiazulene-stabilized cations reacted with metal enolates affording carbonyl compounds with azulene moiety. Metal enolates generated by asymmetric conjugate addition of organometallic reagents led to enantioenriched products. Additionally, guaiazulene-substituted cations efficiently...