5. For the cyclohexane structure shown, draw the chair equilibrium showing both chair conformations (2points each) that interconvert. Use the chair structures provided and add the substituents at the correctpositions with correct orientation. Circle the lower energy conformation (1 point) and provide a brief,one-sentence explanation for your choice (1 point).OHExplanation:MThe first chair sticture has more because itSubstitutes making it more stuble.haimore equtoralThe Second chair haslower conformation energy.6. Draw three additional resonance structures that demonstrate which carbons have partial positivecharge. (6 points)04.

Step 1: Step 2: Step 3: Step 4:

Answered: 5. For the cyclohexane structure shown,…

Organic Chemistry: A Guided Inquiry

2nd Edition

ISBN:9780618974122

Author:Andrei Straumanis

Publisher:Andrei Straumanis

Chapter7: Cycloalkanes

Section: Chapter Questions

Problem 17E: Build a model of methylcyclohexane, and use the model to complete the following Newmanprojections of...

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Build a model of methylcyclohexane, and use the model to complete the following Newmanprojections of methylcyclohexane in the chair conformation: a. When the methyl group is in an axial or equatorial (circle one) position, the molecule is inits lowest potential energy conformation. b. Label one Newman projection above anti and the other gauche to describe the relationshipbetween the methyl group and C3 of the ring. c. In general, which is a lower PE conformation, anti or gauche? d. Explain how your answer to b and c provide an explanation for why it is more favorable fora large group to be in an equatorial than an axial position.
4. For the structure shown below, Part A) Draw the Newman projections and 3-D sawhorse structures corresponding to the lowest and highest energy conformations for rotation around the C2-C3 bond. Draw the Newman projections looking FROM THE C2 CARBON TO THE C3 CARBON (i.e. with the C2 carbon in the "front"). Part B) Determine the energy difference between the lowest and highest conformations, and be sure to clearly show each energy contribution that you are including in your calculation. Lowest Energy Conformation 3-D sawhorse Newman ECLIPSING Interactions Energy Difference: AB Energy kcal/mol H/H 1.0 H/Me 1.4 H/Et 1.5 H/Pr 1.6 H/1-Bu 3.0 Me / Me 2.6 Me/Et 2.7 Me/i-Pr 3.0 GAUCHE A Interactions Energy kcal/mol Me / Me 0.9 Me / Et 0.95 Me/i-Pr 1.1 Me/t-Bu 2.7 Et/Et 1.1 Et/i-Pr 1.6 Et/t-Bu 3.0 i-Pr/i-Pr 2.0 Highest Energy Conformation 3-D sawhorse Newman 1
What is the most stable chair conformer for the compound shown (left)? Use the labels indicated in the template structure (right) and the dropdown menu to indicate the correct location (a-h) of the three substituents. Note that the template has the location of two hydrogen atoms (H) indicated. H. (H3C);C/I. CH2CH3 -NH hi a Location of 'CH3CH2- is d. Location of (CH3)3C- ' is g Location of 'CN' is
1. Draw a Newman projection of the most stable conformational isomer of 2,4-dimethylhexane as viewed along the C3-C4 bond (C3 in front, C4 in back). Two templates are given with one hydrogen atom drawn in place. Note that only one template leads to the correct answer, therefore use only one of the given templates. H H.
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Indicate whether the pair of structures shown represent stereoisomers, constitutional isomers, different conformations of the same compound, or the same conformation of a compound viewed from a different perspective. Note that cis, trans isomers are an example of stereoisomers. CH3 CH3 CI CI H H H. H CH3 H. H' H. CH3 Submit Answer Retry Entire Group 6 more group attempts remaining (Previous Next Save and Exit Cengage Learning | Cengage Technical Support MacBook Air DII 888 F12 F10 F7 F4 & 9 delete - 4 5 6 8 { т Y U P F G J K 1r command eption .. ..
Give typed full explanation otherwise leave it
Complete the sentences (one-word answers; ala) below based on the following Newman projection A and information below: and Newman projections (B and C H. CI CI CH2CO2H CI В A is a Newman projection of (IUPAC name of the molecule) along the C3-C4 bond is best described as being the (type) conformer. B is the most stable conformation because the substituent groups are in the position. C is the least stable because all the bonds are
4. For each of the pairs of molecules drawn below, place letters in the corner boxes corresponding to all accurate descriptions of the relationship between the two molecules. a) b) O H3C HO Br HO OH Br HH HO TH CH3 HH HH CH3 HO Br Br HO OH HH HH CH3 CH3 OH all letters that apply all letters that apply all letters that apply all letters that apply A enantiomers B diasteromers C different conformations of the same molecule D identical comformations of the same molecule E constitutional isomers F stereoisomers G different molecules H both are chiral I neither is chiral
1) RCO H 2) [H₂SOJ. ? Modify the given structure to draw the major product(s). Use the single bond tool to interconvert between double and single bonds. If a racemic mixture of enantiomers is expected, draw both enantiomers. Note: you can select a structure and use Copy and Paste to save drawing time. H₂C. OH th CH, CH₂ OH H₂C OH aff CH₂ CH₂ Edit Drawing
Reviewing for final, and confused on this question. Classify each conformation as staggered or eclipsed around the indicated bond, and rank the conformations in order of increasing stability?
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