Chapter 7.6, Problem 13P

(a)

Interpretation Introduction

Interpretation:

The mechanism for the reaction of 2-butyne with one equivalent of bromine should be given.

Concept Introduction:

Addition of halides to alkynes: Halogens like chlorine and bromine adds to the alkyne compounds. The general form of the reaction is given below.

If excess halides are present, a second addition reaction also occurs.

(b)

Interpretation Introduction

Interpretation:

The configuration of the product obtained in the above reaction should be identified.

Concept Introduction:

Addition of halides to alkynes: Halogens like chlorine and bromine adds to the alkyne compounds. The general form of the reaction is given below.

If excess halides are present, a second addition reaction also occurs.