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Chapter 16: Q2P (page 742)

Why are numbers not used to designate the position of the functional group in propanone and butanedione?

Short Answer

Expert verified

If the position of carbonyl group changes, then it would not be considered as a ketone.

Step by step solution

01

Step-by-step-solutionStep 1: Ketones

Ketones come under the category of carbonyl compounds. The IUPAC name of the ketones is acquired by replacing 鈥榚鈥� on the end of the parent hydrocarbon with 鈥渙ne鈥�. Some examples of ketone are 2-propanone and 2-methyl-2-butanone.

02

Reason for not using numbers to designate the position of functional groups in propanone and butanedione

The structure of propanone and butanedione can be given as:

Structure of the compounds

The numbers are not used to designate the functional group position in propanone and butanedione as if the position of the carbonyl group changes, then that compound will not be a ketone.

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Most popular questions from this chapter

The pKa of protonated acetone is about -7.5, and the pKa of protonated hydroxylamine is 6.0.

a. In a reaction with hydroxylamine at pH 4.5 (Figure 16.2), what fraction of acetone is present in its acidic, protonated form? (Hint: See Section 2.10.)

b. In a reaction with hydroxylamine at pH 1.5, what fraction of acetone is present in its acidic, protonated form?

c. In a reaction with acetone at pH 1.5 (Figure 16.2), what fraction of hydroxylamine is present in its reactive basic form?

Question: a. Show the reagents required to form the primary alcohol in each of the following reactions.b. Which of the reactions cannot be used for the synthesis of isobutyl alcohol?

Draw the structure for each of the following:

a.

b.

c.

d.

What is the product of the reaction of an ester with excess acetylide ion followed by the addition of pyridinium chloride?

What is the product of each of the following reactions?
See all solutions

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