5. Each molecule below hasCH3но,a chiral carbon. Determine the absolute configuration (R/S) for each.ÇH,EtOHн.H3C.ннснон

Chirality: The geometric property of molecules where the structure of the molecule and its mirror…

Answered: 5. Each molecule below has CH3 но, a…

Organic Chemistry: A Guided Inquiry

2nd Edition

ISBN:9780618974122

Author:Andrei Straumanis

Publisher:Andrei Straumanis

Chapter7: Cycloalkanes

Section: Chapter Questions

Problem 15E

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Sight along the C2-Cl bond of 2-methylpropane (isobutane). a. Draw a Newman projection of the most stable conformation. b. Draw a Newman projection of the least stable conformation. c. Make a graph of energy versus angle of rotation around the C2-Cl bond. d. Assign relative values to the maxima and minima in your graph, given that an H↔H eclipsing interaction costs 0 kJ/mol and an H↔CH3 eclipsing interaction costs 6.0 kJ/mol.
9) There are 3 different cyclopropane molecules with the formula GHĄC12. a. Draw and build the 3 molecules. b. Below each drawing, name each molecule with correct nomenclature. Label a pair that are constitutional isomers. d. Label a pair that are stereoisomers (or configurational isomers). С.
5. Draw the following molecules in two difference configurations about the double bond. Name the molecules and be sure to include the appropriate configuration (trans or cis). If the structure cannot be drawn in two different configurations. explain why a. H2C=CH2 b. CH3CH=CHCH3 с. CI(CH3)С-СHCH3
3: Draw bond-line structures (with wedges or dashes, where appropriate) of each of the following molecules. Be sure to draw the correct stereoisomer of any chiral molecules. a: H. H I I C: H. OH b: CH3 H S CH3 H Br CH3 CH3 CI CH3
Please help me in answering this organic chemistry question. Explanations are welcome.
CH3 H3C. 1. ČH3 3-isopropyl-5-methylcyclohexanol There are four cis,trans isomers for 3-isopropyl-5-methylcyclohexanol, where the cis,trans designations of the substituents are made relative to the OH group: • up, up, up (cis,cis) • up, up, down (cis,trans) down (trans.cis) • up, down, • up, down, up (trans,trans) Consider the most stable chair for each of these isonmers, and then draw the most stable and least stable isomer based on a comparison of the best chair for each one. • To simplify matters, consider only axial vs equatorial energies of the groups (i.e. do not worry about the interactions between the groups, which in reality is also • Use the wedge/hash bond tools to indicate stereochemistry where it exists. • You do not have to explicitly draw H atoms. • Use "flat" representations of rings, not chairs, in your drawing. Most stable Least stable
5. Construct models of all the stereoisomers of 1-bromopropene. Draw the line structure of your models. Are these molecules isomers? If they are isomers to what specific category do they belong? Assign E or Z descriptors to each compound, if appropriate. 6. Construct a model of dibromochloromethane and draw the perspective structure. How many planes of symmetry does this molecule possess? Construct the mirror image of your model. Are the two models superimposable? Classify or describe the relationship between these two mirror images, and assign R or S descriptors, if appropriate.
Q5: Classify the following pair of molecules as constitutional isomers, enantiomers, diastereomers, the same molecule, or completely different molecules. Br O CI Br OH OH 111 Br .!!!/Br F OH and ...m Br Br OH CI Br OH ་་་་་" ། ་
_10. Which of the following chiral compounds has a S configuration? CH3 CH3 COOH соон Br HO А. В. НО CH2CH3 NH2 CI С. CH3 D.
Compare the following conformers of 1-fluoropropan-1-ol. Match each conformer to their corresponding relative energy. Recall, the more stable the conformer the lower the energy. OH CH3 'F 2. HOH 2nd Highest Energy H 2nd Lowest Energy H3C 3. H. ОН Lowest Energy H 'F Highest Energy ČH3 4. H3C, OH 'F 1. >
Use flat representation of rings, not chair in the drawing. Determine the most and least stable. Consider the most stable chair for each of these isomers, and then draw the most stable and least stable isomer based on a comparison of the best chair for each one.
H8.

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5. Each molecule below has CH3 но, a chiral carbon. Determine the absolute configuration (R/S) for each. ÇH, Et OH н. H3C. н н сно н