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4 4. (a) Draw the structure of the two chair forms of methylcyclohexane. Draw in all...
(a) Draw the structure of the two chair forms of methylcyclohexane. Draw in all bonds (even the C-H bonds). Be sure the axial and equatorial bonds are shown correctly. On the appropriate structure, indicate the 1,3-diaxial interactions involving the methyl group. (b) Which is more stable, trans-1,3-dimethylcyclohexane or cis-1,3-dimethylcyclohexane? Why?
(a) Draw the structure of the two chair forms of methylcyclohexane. Draw in all bonds (even the C-H bonds). Be sure the axial and equatorial bonds are shown correctly. On the appropriate structure, indicate the 1,3-diaxial interactions involving the methyl group. (b) Which is more stable, trans-1,3-dimethylcyclohexane or cis-1,3-dimethylcyclohexane? Why?
Please answer in detail 4. (a) Draw the structure of the two chair forms of methylcyclohexane. Draw in all bonds (even the C-H bonds). Be sure the axial and equatorial bonds are shown correctly. On the appropriate structure, indicate the 1,3-diaxial interactions involving the methyl group. (b) Which is more stable, trans-1,3-dimethylcyclohexane or cis-1,3-dimethylcyclohexane? Why?
9. Draw two different chair conformations of cyclohexanol, showing all hydropen atoms. Identify each position as axial or equatorial 10. Draw the most stable chair conformation of the following molecules, and estimate the amount of strain in each: (a) trans-1-Chloro-3-methylcyclohexane (b) cis-1-Ethyl-2-methylcyclohexane (c) cis-1-Bromo-4-ethylcyclohexane (d) cis-1-tert-Butylcyclohexane 11. Which isomer is more stable, cis-decalin or trans-decalin? Explain. 12. Glucose exists in two forms having a 36:64 ratio at equilibrium. Draw a skeletal structure of each, describe the difference between them and...
6. Build the cyclobutane ring and study the angle strain and torsional strain. Draw the structures to explain these factors. 7. The conformation of cyclobutane is slightly folded. Folding gives partial relief from the eclipsing of bonds, as shown in the Newman projection. Compare this actual structure with the hypothetical planar structure. Draw the relevant structures. 8. trans-1,2-Dimethylcyclobutane is more stable than cis-1,2-dimethylcyclobutane, but cis-1,3- dimethylcyclobutane is more stable than trans-1,3-dimethylcyclobutane. Use the molecular models to find the reasons for...
Draw the Newman projections for the anti conformation and two types of eclipsed conformations of 1,2-diiodoethane. Of the two eclipsed conformations, which is of higher energy, and why?
5. Draw the Newman projections for the anti conformation and two types of eclipsed conformations of 1,2-diiodoethane. Of the two eclipsed conformations, which is of higher energy, and why?
Please answer in detail 5. Draw the Newman projections for the anti conformation and two types of eclipsed conformations of 1,2-diiodoethane. Of the two eclipsed conformations, which is of higher energy, and why?
11. Build the chair and boat conformations and identify the most stable conformation. Identify the 1,3-diaxial interactions. 12. Draw the most stable conformation of (a) ethylcyclohexane (b) 3-isopropyl-1,1-dimethylcyclohexane (c) cis-1-tert-butyl-4-isopropylcyclohexane 13. Draw all possible conformations of 1,4-dimethylcyclohexane and identify the most stable conformation 14. (a) Draw both chair conformations of cis-1,2-dimethylcyclohexane, and determine which conformer is more stable. (b) Repeat for the trans isomer. (c) Predict which isomer (cis or trans) is more stable. 15. (a) Draw both chair conformations...
Laboratory Work 1. Draw the skeletal formulas and make models of the three constitutional isomers of C5H12. 2. Draw Kekule structures and make models of all the constitutional isomers of C2H4Cl2. 3. Draw Kekule formulas and make models of ethane, ethene, and ethyne. How does the geometry of their structures differ? Which compound contains sp hybridized carbons? 4. Draw and label the Newman projection and make the model of the anti-conformation of 1,2-dibromoethane. Rotate around the carbon-carbon bond...