Chapter 21, Problem 10PP

Interpretation Introduction

Interpretation:

Reactants involved in the reactions to synthesize the products are to be determined.

Concept introduction:

Sonogashira coupling is the reaction in which an alkyne reacts with an alkenyl or an aryl halide in the presence of a mixture of catalytic palladium and copper $\left(\text{I}\right)$.

It is a cross-coupling method and a very good method to join an aromatic ring on alkyne.