Chapter 18, Problem 56PP

Interpretation Introduction

Interpretation:

To predict the product and mechanism of given reaction has to be identified.

Concept Introduction:

• The assault can take place at also end of the triple bond with equivalent probability, explaining the experiential results. This proposed mechanism is called elimination-addition.

• A nucleophilic aromatic replacement is a replacement reaction in organic chemistry in which the nucleophile displaces a good departure group, such as a halide, on an aromatic ring. Present are nucleophilic replacement mechanisms encountered with perfumed systems.

• The delocalized nature of pi electrons in benzene attributes a special property to benzene called resonance.

• Benzyne is an unstable transitional, which has a structure parallel to benzene with an additional pi bond. The third pi bond is fashioned by the partly cover of ${\text{sp}}^{\text{2}}$ hybridized orbitals external the ring. While the molecule is stressed it is highly immediate species.