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Chapter 4: Q.42. (page 128)

Question: Give the IUPAC name for each compound.

Short Answer

Expert verified

Answer

  1. 4-isopropylheptane
  2. 3-ethyl-3-methylpentane
  3. 4,4-diethyl-5-methyloctane

Step by step solution

01

Newman projection

The two bonded carbons show a Newman projection with their groups.

02

IUPAC names

a. The given Newman structure has two bonded carbon atoms. The first priority is given to that carbon where the tri substitution of the carbon is located. Therefore, the correct name and structure are shown as:


4-isopropylheptane

b. The given Newman structure has two bonded carbon atoms. The first priority is given to that carbon where the tri substitution of the carbon is located. Therefore, the correct name and structure are shown as:

3-ethyl-3-methylpentane

c. The given Newman structure has two bonded carbon atoms. The first priority is given to that carbon where the bulky substituents are located. Therefore, the correct name and structure are shown as:

4,4-diethyl-5-methyloctane

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Most popular questions from this chapter

Question: Draw the structure corresponding to each IUPAC name.

a. 3-ethyl-2-methylhexane

b. sec-butylcyclopentane

c. 4-isopropyl-2,4,5-trimethylundecane

d. cyclobutylcycloheptane

e. 3-ethyl-1,1-dimethylcyclohexane

f. 4-butyl-1,1-diethylcyclooctane

g. 6-isopropyl-2,3-dimethyldodecane

h. 2,2,6,6,7-pentamethyloctane

i. cis-1-ethyl-3-methylcyclopentane

j. trans-1-tert-butyl-4-ethylcyclohexane

Question: Give the IUPAC name for each compound.

Question: Classify each pair of compounds as constitutional isomers, stereoisomers, identical molecules, or not isomers of each other.

a.

b.

c.

d.

Question: Rank the following alkanes in order of increasing boiling point.

Question: Consider the tricyclic structure B.

(a) Label each substituent on the rings as axial or equatorial.

(b) Draw B using chair conformations for each six-membered ring.

(c) Label the atoms on the ring fusions (the carbons that join each set of two rings together) as cis or trans to each other.

B
See all solutions

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