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Chapter 4: Q104P (page 186)

Is the following compound optically active?

Short Answer

Expert verified
The compound is not optically active as it has point of symmetry.

Step by step solution

01

Some definitions:

Optically active:

The compounds that rotates the plane of polarization of plane-polarized light. Chiral carbons are optically active .

What is asymmetric centre or chiral carbon-

Chiral objects are those objects which have no same mirror images. The mirror images don’t superimpose each other. whose mirror images superimpose each other that compounds are called achiral objects.

Chiral carbon is that carbon atom which is bonded to four different groups.

02

Final answer

The compound is not optically active as it has point of symmetry.

A point of symmetry= If a line drawn to this point from an atom or group and then extended an equal distance beyond the point , the line would touch an identical atom or group.

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Most popular questions from this chapter

a) Do the following compounds have any asymmetric centers?

b) Are the compounds chiral? (Hint: Make models.)

  1. CH2=C=CH2
  2. CH3CH=C=CHCH3

Draw skeletal structures for each pair of isomers in Problem 7.

1-Bromo-2-methylcyclopentane has four pairs of diastereomers. Draw the four pairs

Question: Draw structures for each of the following:

a.(S)-1-bromo-1-chlorobutane

b.(2R,3R)-2,3-dichloropentane

c.an achiral isomer of 1,2-dimethylcyclohexane

d.a chiral isomer of 1,2-dibromocyclobutane

e. two achiral isomers of 3,4,5-trimethylheptane

Limonene exists as two different stereoisomers. The R enantiomer is found in oranges and lemons, and the S enantiomer is found in spruce trees. Which of the following is found in oranges and lemons?
See all solutions

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