Alkyl Halide Vinyl Halide Aryl Halide

Rapid s n 2 substitution for 1º and 2º halides.

Alkyl halide vinyl halide aryl halide.

Steric hindrance caused by the benzene ring of the aryl halide prevents s n 2 reactions. Likewise phenyl cations are unstable thus making s n 1 reactions impossible. An aryl halide has general formula c 6h 5x in which an halide group x has substituted the aryl ring. Fs show all steps.

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. Halogens are more electronegative than carbon. Rapid s n 2 substitution for 1º halides note there are no β. The carbon chlorine bond in chlorobenzene is stronger than you might expect.

Classify each compound as an alkyl halide a vinyl halide or an aryl halide. In high dielectric ionizing solvents such as water dimethyl sulfoxide acetonitrile s n 1 and e1 products may be observed. Chapter 6 problem 1p 7 43 1 0. In addition the carbon halogen bond is shorter and therefore stronger in aryl halides than in alkyl halides.

There is an interaction between one of the lone pairs on the chlorine atom and the delocalized ring electrons and this strengthens the bond. The carbon halogen bond is shortened in aryl halides for two. The extra strength of the carbon halogen bond in aryl halides. 100 44 ratings for this solution.

For example if the halogen atom is attached to a carbon atom which is attached to a benzene ring cl ch 2 c 6 h 5 one would think it is an aryl halide but it is an alkyl halide because the halogen atom is attached to the carbon that is sp 3 hybridized. Walkthrough video for this problem.