Thursday, May 24, 2018

organic chemistry - Is the ethyl cation really more stable than benzylic and allylic carbocations?



enter image description here Source: Concepts of Organic chemistry by O.P. Tandon, page no. 235



My book appears to state that the ethyl cation (a primary carbocation) is more stable than both allyl and benzyl carbocations.


I knew that cation stability depends on the following factors: resonance > hyperconjugation > +inductive effect.


Can someone please clarify whether the ranking shown above is true?




-

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)

periodic trends - Comparing radii in lithium, beryllium, magnesium, aluminium and sodium ions

Apparently the of last four, $\ce{Mg^2+}$ is closest in radius to $\ce{Li+}$. Is this true, and if so, why would a whole larger shell ($\ce{...