Concept explainers
Draw a chair conformation of cyclohexane with one
one
a. a 1, 1-disubstituted cyclohexane with an axial
b. a cis-1, 2-disubstituted cyclohexane with an axial
c. a trans-1, 3-disubstituted cyclohexane with an equatorial
d. a trans-1, 4-disubstituted cyclohexane with an equatorial
Want to see the full answer?
Check out a sample textbook solutionChapter 4 Solutions
Organic Chemistry
Additional Science Textbook Solutions
Microbiology Fundamentals: A Clinical Approach
Organic Chemistry (8th Edition)
Chemistry: Structure and Properties (2nd Edition)
Human Anatomy & Physiology (2nd Edition)
- • 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-methycyclohexanearrow_forwardWhich projection corresponds to 2,3,4-trimethylhexane? CH,CH3 H3C. CH(CH3)2 ČH3 b. CH3 H CH,CH3 H. ČH3 (CH3)2CH CH3 H3C, C. HY CH;CH(CH3)2 ĊH3 CH3 d. (CH3),CH, H Y CH,CH3 ČH3 a.arrow_forwardChoose the statement that is incorrect about rings. اختر احدى الاجابات А. Planar cyclobutane is its most stable conformation. В. Planar cyclopentane would have small angle strain but severe torsional strain. C. The chair conformation of cyclohexane has no angle or torsional strain. D. Cyclopropane has the greatest angle strain. Е. The chair conformation has less torsional strain and fewer nonbonded interactions than the twist boat conformation.arrow_forward
- 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?arrow_forwardDraw the two chair conformations for each of the following compounds and indicate which conformer is more stable.arrow_forwardClassify each of the following hydrocarbons as saturated or unsaturated. Ethylcyclopentane Ethylcyclopentene 1,3-butadiene 2-methyl-2-pentene 2-methylcyclopentene 1,2-cyclopentadiene 2,3-dimethylpentanearrow_forward
- yarrow_forwardLook at a cyclohexane model:a. Mark the axial bonds. Hold carbon atoms 1, 2, 3, 4, 5, and 6 firmly and flip up carbon 4. What is the resulting conformation? b. Then holding carbons 2, 3, 4, 5, and 6 firmly, flip down carbon What is now the resulting conformation?arrow_forwardWhich 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-dimethylcyclohexanearrow_forward
- 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 Darrow_forward4. Perform a conformational analysis on cyclohexane derivative I. Draw out both possible conformers and circle Using A, U, and G values estimate the energy difference (DG) the preferred (lowest energy) conformer between the two conformers and predict the approximate ratio of the two conformers at room temperature Hj C Br cyclohexane Iarrow_forwardDraw an example of each isomer type indicated. CI OH SH NH₂ CH3 conformational configurational constitutional A B C 4arrow_forward
- Chemistry for Today: General, Organic, and Bioche...ChemistryISBN:9781305960060Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. HansenPublisher:Cengage Learning