Chapter 13, Problem 13.28UKC

a)

Interpretation Introduction

Interpretation:

The products of the reaction and its name to be predicted for the hydrogenation of given Alkyne

Concept Introduction:

IUPAC naming nomenclature:

• Name the parent compound: Find the longest chain containing the double bond or triple bond and add the suffix ‘-ene’ or ‘-yne’ to the end of the main chain name.
• Number the carbon atoms in the main chain so that those with multiple bonds have the lowest index numbers possible:
• Write the full name: List the substituents in alphabetical order. Use commas to separate the numbers and the hyphen to separate number from words.  Indicate the position of double or triple bond in chain by giving the number of the first multiple-bond carbon.

Addition reaction: A general reaction type in which a substance X-Y adds to the multiple bond of an unsaturated reactant to yield a saturated product that has only single bonds.

Hydrogenation (Addition of ${\text{H}}_2$ to alkenes): The addition of ${\text{H}}_2$ to a multiple bond to give a saturated product.

b)

Interpretation Introduction

Interpretation:

The products of the reaction and its name to be predicted for the hydrogenation of given Alkyne

Concept Introduction:

Addition reaction: A general reaction type in which a substance X-Y adds to the multiple bond of an unsaturated reactant to yield a saturated product that has only single bonds.

Hydrogenation (Addition of ${\text{H}}_2$ to alkenes): The addition of ${\text{H}}_2$ to a multiple bond to give a saturated product.