A carbonyl compound (P) which gives positive iodoform test, undergoes reaction with MeMgBr
Channel: Doubtnut
Date: 26/07/2020

A carbonyl compound (P) which gives positive iodoform test, undergoes reaction with MeMgBr followed by dehydration to give an olefin (Q). Ozonolysis of (Q) leads to a dicarbonyl compound (R ) which undergors intramolecular aldol reaction to give predominantly (S).  `Poverset(1. MeMgBr)underset{:(2.H^(+)","H_(2)O),(3.H_(2)SO_(4)","Delta):}rarr Q underset(2. Zn"," H_(2)O)overset(1. O_(3))rarr R underset(2. Delta)overset(1. OH^(-))rarr S`  The structure of products (Q) and (R ), respectively, are: