(a) Draw the chair form of cis-1,4-dimethylcyclohexane. Show the strains present, and calculate the total strain energy. CH3 H3C cis-1,4-dimethylcyclohexane (b) Draw the isomer resulting from a ring-flip. Show the strains present, and calculate the total strain energy.

(a) Draw the chair form of cis-1,4-dimethylcyclohexane. Show the strains present, and calculate the total strain energy. CH3 H3C cis-1,4-dimethylcyclohexane (b) Draw the isomer resulting from a ring-flip. Show the strains present, and calculate the total strain energy.

Organic Chemistry: A Guided Inquiry

2nd Edition

ISBN:9780618974122

Author:Andrei Straumanis

Publisher:Andrei Straumanis

Chapter6: Alkanes & Alkenes

Section: Chapter Questions

Problem 4E: Consider the molecule 1-bromo-2-methylbutane. C3 and C4 should be drawn as Et as in theexample. This...

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Concept explainers

Alkanes and Cycloalkanes

Alkanes are saturated organic compounds which are made up of C and H atoms. Alkanes have the general formula of CnH2n+2. Alkane contains sp3 hybridized carbon atoms with four sigmas (σ) bonds & every hydrogen atom is connected with one of the carbon atoms. The size of the alkane could be determined by the number of carbon atoms located in it.

Question

(a) Draw the chair form of cis-1,4-dimethylcyclohexane. Show the strains present, and calculate the
total strain energy.
CH3
H3C
cis-1,4-dimethylcyclohexane
(b) Draw the isomer resulting from a ring-flip. Show the strains present, and calculate the total strain
energy.
(c) Which of the two isomers is most stable? Which is favored in the equilibrium between them?
(d) Draw the chair form of the trans-diequatorial isomer. Show and calculate the total strain energy.

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