Which of the following is most reactive towar | vedclass

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(A) Sulphonation is an electrophilic aromatic substitution reaction. The rate of this reaction depends on the electron density of the aromatic ring. E

Vedclass · Accepted Answer

$m$-Xylene

Vedclass · Answer

(A) Sulphonation is an electrophilic aromatic substitution reaction. The rate of this reaction depends on the electron density of the aromatic ring. Electron-donating groups (like alkyl groups) increase the electron density of the ring,making it more reactive towards electrophiles. $m$-Xylene has two methyl groups at the $1$ and $3$ positions. These groups are meta-directing relative to each other and reinforce the activation of the ring at the $4$-position. In $m$-xylene,the two methyl groups provide a greater inductive effect and hyperconjugation compared to toluene (one methyl group) and $o$-/$p$-xylene (where steric hindrance and electronic effects are less favorable for the specific electrophilic attack). Therefore,$m$-xylene is the most reactive among the given options.

Which of the following is most reactive towards sulphonation?

Similar Questions

In the following set of aromatic compounds,the correct order of reactivity toward Friedel-Crafts alkylation is:
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(iii) Methyl benzoate
(iv) Anisole

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The total number of aromatic species generated in the following reactions is:

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