The increasing order of the following compounds towards HCN addition is :

Question:

The increasing order of the following compounds towards HCN addition is :

(1) (i) $<($ iii $)<($ iv $)<($ ii $)

(2) (iii) $<($ iv $)<($ i $)<($ ii $)$

(3) (iii) $<($ i $)<$ (iv) $<$ (ii) 

(4) (iii) $<($ iv $)<($ ii $)<($ i $)$


Correct Option: , 3

Solution:

-I effect of $\mathrm{NO}_{2}$ increases reactivity towards nucleophilic addition reaction with $\mathrm{HCN} .-\mathrm{OCH}_{3}$ group is electron donating due to resonance effect which decreases the reactivity towards nucleophillic addition.

 

Leave a comment

Close
faculty

Click here to get exam-ready with eSaral

For making your preparation journey smoother of JEE, NEET and Class 8 to 10, grab our app now.

Download Now