Method (2): D+ THE Part 2 out of 2 Which one of these methods is preferred, and why? Method [2] is preferred because the alkyl halide should be unhindered in an Sy2 reaction mechanism. Method [1] is preferred because the alkyl halide should be relatively hindered in an Sy2 reaction mechanism. Method [2] is preferred because the less substituted alkyl halide results in a more stable carbocation. Method [1] is preferred because the more substituted alkyl halide results in a more stable carbocation.