Chapter 7.5, Problem 7.3P

(a)

Interpretation Introduction

Interpretation:

The structural formula for an alkene and a dichloroalkane with the given molecular formula that yields the indicated alkyne by each reaction sequence has to be drawn.

Concept introduction:

Soda amide (${\text{NaNH}}_{\text{2}}$): The strong base of ${\text{NaNH}}_{\text{2}}$ will deprotonate alkynes, alcohols and other organic functional groups with acidic protons such as esters and ketones.  It is also a very strong nucleophile.

Halogenation: The addition of halogen atoms to a $\text{π-}$ conjunction system. The several unsaturated organic compounds like, alkenes, alkynes and cyclohexenes that has one double bond is halogenated, the resulting molecules is completely saturated or halogenated.

(b)

Interpretation Introduction

Interpretation:

The structural formula for an alkene and a dichloroalkane with the given molecular formula that yields the indicated alkyne by each reaction sequence has to be drawn.

Concept introduction:

Soda amide (${\text{NaNH}}_{\text{2}}$): The strong base of ${\text{NaNH}}_{\text{2}}$ will deprotonate alkynes, alcohols and other organic functional groups with acidic protons such as esters and ketones.  It is also a very strong nucleophile.

Halogenation: The addition of halogen atoms to a $\text{π-}$ conjunction system. The several unsaturated organic compounds like, alkenes, alkynes and cyclohexenes that has one double bond is halogenated, the resulting molecules is completely saturated or halogenated.