In a standard carbocation 1,2-shift, what is the generally accepted order of migratory aptitude? — Reaction Mechanism Chemistry Question

💡 Solution & Explanation

Driven by electron-donating ability to the transition state, the standard kinetic migratory aptitude is $H^- > Ph^- > 3^\circ Alkyl > 2^\circ Alkyl > 1^\circ Alkyl > Methyl$.