Q30E - Organic Chemistry (Mcmurry)

Question

Predict the products of the following reactions:

Step-by-Step Solution

Answer

The product will be

Step 1: Definition of Lindlar’s catalyst and H 2 , Pd / C

Lindlar’s catalyst – This catalyst only reduces the alkyne into alkene. This catalyst does not reduces alkene

 ${\mathbf{H}}_{\mathbf{2}}\mathbf{,}\mathbf{Pd}\mathbf{/}\mathbf{C}$ - This catalyst reduces both alkyne and alkene converts into alkane.

Step 2: Formation of product

Alkyne and alkene which are present in the compound has been reduced by ${\text{H}}_2\text{,Pd/C}$ 

But Lindlar’s catalyst reduces only triple bond present in the compound.