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Chapter 21: 5P (page 817)

Give the IUPAC name for each ketone

a.

b

c

Short Answer

Expert verified

a. 2-cyclohexylpentan-3-one

b. 3-tert-butyl-2-methylcyclopentanone

c. 2,2,4,4-tetramethylpentan-3-one

Step by step solution

01

IUPAC naming for carbonyl group

The numbering starts from the first carbon of the longest chain in which the ketone group is included. The suffix 鈥渙ne鈥� suffix is used after the parent name.

02

IUPAC names of a, b and c

a. The given compound has five carbon atoms in a chain. Ketone and cyclohexyl groups are attached to C-3 and C-2 atoms, respectively.

The IUPAC of the given compound is shown below:

2-cyclohexylpentan-3-one

b. The given compound has five carbon atoms in a cyclic form. Ketone group, tert butyl, and methyl group are attached to C-1, C-3, and C-2 atoms, respectively.

The IUPAC of the given compound is shown below:

3-tert-butyl-2-methylcyclopentanone

c. The given compound has five carbon atoms in a chain. Ketone group and two methyl groups are attached to C-1 and C-2, C-4 atoms, respectively.

The IUPAC of the given compound is shown below:

2,2,4,4-tetramethylpentan-3-one

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Most popular questions from this chapter

Give the IUPAC name (including any E,Z designation) for each unsaturated aldehyde. Neral is obtained from lemon grass, and cucumber aldehyde (Problem 1.30) contributes to the aroma of a fresh mango.

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Draw a stepwise mechanism for the following reaction that converts a dicarbonyl compoundto a furan.

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