The Synthesis of a Novel Bulky Primary Alkyl Group and Its Application toward the Kinetic Stabilization of a Tetraalkyldisilene

A novel, peripherally extended sterically demanding primary alkyl group based on the triptycene (Trp) framework, Trp*CH2, was designed and synthesized via a convenient one-pot reaction using the Friedel-Crafts alkylation of the corresponding TrpCH2 precursor. The introduction of the Trp*CH2 groups onto a Si=Si double bond allowed isolating the first stable tetraalkyldisilene that contains primary alkyl groups.