1. Tardigrade
  2. Question
  3. Chemistry
  4. The correct order of increasing stabilities for the following carbocations is ( 1) allyl carbocation (2 ) neopentyl carbocation (3) benzyl carbocation (4) isobutyl carbocation

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Q. The correct order of increasing stabilities for the following carbocations is
( 1) allyl carbocation
(2 ) neopentyl carbocation
(3) benzyl carbocation
(4) isobutyl carbocation

Organic Chemistry – Some Basic Principles and Techniques

Solution:

Allyl carbocation (stabilised by resonance)

image

Benzyl and allyl carbocations are much more stable due to resonance.

Hence, the stability order is

Neopentyl carbocation $<$ isobutyl carbocation $<$ allyl carbocation $<$ benzyl carbocation.