Question

In the following sequence of reaction all stereoisomers of (X) have been taken.

Find Q and R
Here Q = Total number of stereoisomers of Y
R = Total number of stereoisomers of Z
What is the sum of Q and R?

Answer 1

• The ozonolysis of the alkene followed by reductive workup produces two carbonyl compounds (Y). They react with hydroxyl amine to form oxime.
  

Here Q = Total number of stereoismers of Y = 2
R = Total number of stereoisomers of Z = 4
Sum of Q and R =2+4=6=2+4=6