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Magazine Chapter 21: 4P (page 817)
Give the IUPAC name for each aldehyde.
a.2-isobutyl-3-isopropylhexanal
b. trans-3-methylcyclopentanecarbaldehyde
c. 1-methylcyclopropanecarbaldehyde
d. 3,6-diethylnonanal
Short Answer
a.
b
c
d
Step by step solution
IUPAC name of the carbonyl group
The first priority or number is given to the carbon of the carbonyl group. The suffix 鈥渁l鈥� is used in the parent name.
Structures of a, b, c, and d
a. The given compound has six carbon atoms in a chain. Aldehyde group, isobutyl group, and isopropyl group are attached to C-1, C-2, and C-3 atoms, respectively.
The structure of the given compound is shown below:
trans-3-methylcyclopentanecarbaldehyde
b. The given compound is composed of five carbon atoms in a cyclic form. Aldehyde group and methyl group are attached to C-1 and C-3 atoms, respectively. Both have different orientations in space.
The structure of the given compound is shown below:
trans-3-methylcyclopentanecarbaldehyde
c. The given compound has three carbon atoms in a cyclic form. Aldehyde group and methyl group are attached to the C-1 atom.
The structure of the given compound is shown below:
1-methylcyclopropanecarbaldehyde
d. The given compound has nine carbon atoms in a chain. Aldehyde group and ethyl groups are attached to C-1 and C-3, C-6 atoms, respectively.
The structure of the given compound is shown below:
3,6-diethylnonanal
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