Alkyl Halide Vinyl Halide Aryl Halide. However alkyl halides may sometimes be confused with aryl halides. Rapid s n 2 substitution for 1º halides note there are no β. For 3º halides a very slow s n 2 substitution or if the nucleophile is moderately basic e2 elimination.
Rapid s n 2 substitution for 1º and 2º halides. Walkthrough video for this problem.
Likewise phenyl cations are unstable thus making s n 1 reactions impossible.
In high dielectric ionizing solvents such as water dimethyl sulfoxide acetonitrile s n 1 and e1 products may be observed. Likewise phenyl cations are unstable thus making s n 1 reactions impossible. A vinyl halide is clearly a species with a formula h 2c c x h in which a halide is directly bound to an olefinic bond formally this is ethylene h 2c ch 2 with one of the hydrogens substituted by a heteroatom vinyl chloride h 2c chcl is an example. For 3º halides a very slow s n 2 substitution or if the nucleophile is moderately basic e2 elimination.
