Discussion Forum



1)

Different possible thermal decomposition pathways for peroxyesters are shown   below. Match each pathways  from List I with an appropriate  structure from List II and select the correct answer using the code given below the lists.

2732021585_m12.PNG

273202150_m13.PNG


A) P:1, Q:3, R:4, S:2

B) P:2, Q:4, R:3, S:1

C) P:4, Q:1,R:2, S:3

D) P:3, Q:2, R:1, S:4

Answer:

Option A

Explanation:

Plan This problerm can be solved by using the stability of the radical obtained after fragmentation of peroxy ester.

 Allylic radicals  are more stable  than alkyl  radical, so when there is a possibility of formation of allyl radical, it will undergo fragmentation through the formation of alkyl radical i.e, fragmentation  produces  stable radical

 On the  basis of stability of radical, fragmentation can be done as 

   2832021487_p7.JPG

P → 1,Q→ 3, R → 4, S→2

 Thus, (a) is the correct choice