Chapter 11, Problem 11.57AP

(a)

Interpretation Introduction

Interpretation:

The product obtained by the reaction of the given 1-ethylcyclohexene with hydrogen and palladium catalyst has to be identified.

Concept Introduction:

Hydrogenation reaction is nothing but the addition of hydrogen to an alkene.  In this reaction two bonds are simultaneously broken, one is carbon-carbon double bond, and second one is hydrogen-hydrogen bond, finally forms two carbon-hydrogen bonds.  The general reaction can be represented as follows,

(b)

Interpretation Introduction

Interpretation:

The product obtained by the reaction of the given 1-ethylcyclohexene with water in the presence of sulfuric acid has to be identified.

Concept Introduction:

Hydaration reaction is nothing but the addition of water to an alkene.  In this reaction two bonds are simultaneously broken, one is carbon-carbon double bond, and second one is $H-OH$ bond, finally forms two $\text{ C-H and C-OH bonds}\text{.}$ .  The general reaction can be represented as follows,

In the addition of water to an unsymmetrical alknene, the hydrogen from water is bonded to the less substituted carbon atom and is called Markovnikov’s rule.