Formation of aluminacyclobutenes via carbon monoxide and isocyanide insertion

Abstract

Reaction of LAl[eta2-(CSiMe3)2] (L = HC[(CMe)(NAr)]2, Ar = 2,6-iPr2C6H3) with carbon monoxide and tert-butyl isocyanide afforded unique AlC3 aluminacyclobutenes via insertion into one of the aluminium-carbon bonds.