Question

Draw the coupling product formed when each pair of compounds is treated with $\mathbf{Pd}{\mathbf{\left(}\mathbf{OAc}\mathbf{\right)}}_{\mathbf{2}}$, $\mathbf{P}{\mathbf{(}\mathbf{o}\mathbf{-}\mathbf{tolyl}\mathbf{)}}_3$, and ${\mathbf{Et}}_{\mathbf{3}}\mathbf{N}$.

Short answer

Answer

a.

b.

c.

d.

Step-by-step solution

Heck reaction

The organic reaction involving the coupling of an aryl or vinyl halide with an alkene catalyzed by palladium to form an alkene with a new C-C bond is known as the ‘Heck reaction.’

The reaction occur in the presence of a catalyst such as palladium (II), acetate in the presence of triaryl phosphine, and a base such as triethylamine.

Products

The following products are formed in the given reactions:

a.

Coupling product of a.

b.

Coupling product of b.

c.

Coupling product of c.

d.

Coupling product of d.