1. Tardigrade
  2. Question
  3. Chemistry
  4. The neopentyl halide in ethanol yields alkenes by E1 mechanism due to

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. The neopentyl halide in ethanol yields alkenes by $E1$ mechanism due to

KEAMKEAM 2019Haloalkanes and Haloarenes

Solution:

$E 1$ mechanism readily occur in $3^{\circ}$ carbocation. Presence of higher alkyl groups in alkyl halide also favours $E 1$ mechanism.

The neopentyl halide in ethanol yields alkenes by $E 1$ mechanism due to steric factor which prevents E2 mechanism. In $E 1$ mechanism, Heterolytic dissociation of alkyl halide followed by abstraction of proton by base from a $C$ adjacent to the positively charged $C$ atom $(\beta-C$ atom $)$, takes place as follows:

image