The IUPAC name of the aldehyde has to be provided. Concept Introduction: IUPAC Nomenclature for naming aldehydes : The parent compound; that is the longest continuous carbon chain containing the carbonyl group has to be determined. Replace the final –e of the parent alkane with –al. The chain beginning with the carbonyl carbon is named as carbon -1 . All the substituents are named and numbered. No number is used for the position of carbonyl group because it is always at the end of the parent chain. Therefore it must be carbon -1 .

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Chapter 13, Problem 13.40QP

(a)

Interpretation Introduction

Interpretation:

The IUPAC name of the aldehyde has to be provided.

Concept Introduction:

IUPAC Nomenclature for naming aldehydes:

The parent compound; that is the longest continuous carbon chain containing the carbonyl group has to be determined.

Replace the final –e of the parent alkane with –al.

The chain beginning with the carbonyl carbon is named as carbon -1.

All the substituents are named and numbered.

No number is used for the position of carbonyl group because it is always at the end of the parent chain. Therefore it must be carbon -1.

(b)

Interpretation Introduction

Interpretation:

The IUPAC name of the ketone has to be provided.

Concept Introduction:

IUPAC nomenclature of naming ketones:

The parent compound that is the longest carbon chain containing the carbonyl group has to be determined.

Replace the –e ending of the parent alkane with –one suffix of the ketone family.

The carbon atom has to be numbered. The carbonyl carbon takes the lowest possible number.

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