Draw a chair conformation of cyclohexane with one CH3CH2 group and one CH3 group that ts each description.a. a 1,1-disubstituted cyclohexane with an axial CH3CH2 groupb. a cis-1,2-disubstituted cyclohexane with an axial CH3 groupc. a trans-1,3-disubstituted cyclohexane with an equatorial CH3 groupd. a trans-1,4-disubstituted cyclohexane with an equatorial CH3CH2 group

Draw a chair conformation of cyclohexane with one CH3CH2 group and one CH3 group that ts each description.a. a 1,1-disubstituted cyclohexane with an axial CH3CH2 groupb. a cis-1,2-disubstituted cyclohexane with an axial CH3 groupc. a trans-1,3-disubstituted cyclohexane with an equatorial CH3 groupd. a trans-1,4-disubstituted cyclohexane with an equatorial CH3CH2 group

Organic Chemistry

8th Edition

ISBN:9781305580350

Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

Publisher:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

Chapter2: Alkanes And Cycloalkanes

Section2.5: Conformations Of Alkanes And Cycloalkanes

Problem 2.9P: Following is a chair conformation of cyclohexane with the carbon atoms numbered 1 through 6. (a)...

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Following is a chair conformation of cyclohexane with the carbon atoms numbered 1 through 6. (a) Draw hydrogen atoms that are above the plane of the ring on carbons 1 and 2 and below the plane of the ring on carbon 4. (b) Which of these hydrogens are equatorial? Which are axial? (c) Draw the alternative chair conformation. Which hydrogens are equatorial? Which are axial? Which are above the plane of the ring? Which are below it?
Draw a chair conformation of cyclohexane with one CH3CH2 group and one CH3 group that fits each description. a.a 1,1-disubstituted cyclohexane with an axial CH3CH2 group b. a cis-1,2-disubstituted cyclohexane with an axial CH3 group c. a trans-1,3-disubstituted cyclohexane with an equatorial CH3 group d. a trans-1,4-disubstituted cyclohexane with an equatorial CH3CH2 group.
Which of the following compounds can adopt a chair conformation in which there are no axial methyl groups? O a. cis-1,2-dimethylcyclohexane O b. trans-1,3-dimethylcyclohexane Oc. cis-1,3-dimethylcyclohexane O d. None of the above O e. cis-1,4-dimethylcyclohexane
Draw a chair conformation of cyclohexane with one CH3CH2 group and one CH3 group that fits each description. a. a 1,1-disubstituted cyclohexane with an axial CH3CH2 group b. a cis-1,2-disubstituted cyclohexane with an axial CH3 group c. a trans-1,3-disubstituted cyclohexane with an equatorial CH3 group d. a trans-1,4-disubstituted cyclohexane with an equatorial CH3CH2 group
• Draw the chair conformations of the following compounds and determine which geometric isomer is more stable. Also show using Newman projection that one conformation is more stable than the other. a. cis-1-isopropyl-2-methylcyclohexane b. 1-methycyclohexane
Consider 1,2-dimethylcyclohexane.a. Draw structures for the cis and trans isomers using a hexagon for the six-membered ring.b. Draw the two possible chair conformations for the cis isomer. Which conformation, if either, is more stable?c. Draw the two possible chair conformations for the trans isomer. Which conformation, if either, is more stable?d. Which isomer, cis or trans, is more stable and why?
Which of the following statements is not true regarding the conformation of substituted cyclohexanes? O a. the boat conformation of cyclohexane is usually more stable than the chair conformation O b. ring inversion of cyclohexane between two chair conformations takes place via a boat conformation O c. substituted cyclohexanes are destabilized by 1,3-diaxial interactions d. the relative amount of two conformations of substituted cyclohexanes can be determined from the difference in strain energy
Consider 1,2-dimethylcyclohexane. a.Draw structures for the cis and trans isomers using a hexagon for the sixmembered ring. b. Draw the two possible chair conformations for the cis isomer. Which conformation, if either, is more stable? c. Draw the two possible chair conformations for the trans isomer. Which conformation, if either, is more stable? d.Which isomer, cis or trans, is more stable and why?
For the following structural formula, pick the structure that accurately represents its MOST STABLE conformation. CH3 H₂Cl... Br Br Br H₂C O D. O B. O C. O A. CH3 A CH3 B CH3 ... Br 주 Br H3C C CH3 H3C CH3 D
Which molecule is a conformer of this one? CH,CH3 H3C но CH3 Select one: CH3 H3C. a. H3CH2C он CH3 Н. Ob. H3CH2C он CH3 CH3 с. но "CH2CH3
3. Draw the chair conformer of cyclohexane. Label the axial hydrogens (Ha) and the equatorial hydrogens (He).
CYCLOHEXANE 2D REPRESENTATION Cyclohexane Chair by stereoaisier H H H. „CH2. H CH H. H H V STAGGERED O ECLIPSED O 1,3-DIAXIAL INTERACTION CHAIR BOAT CHAIR In which conformation are the hydrogen atoms farthest apart? Which is the preferred conformation? Give reasons for your answer. Which is the eclipsed conformation?