Organic Chemistry: A Guided Inquiry
2nd Edition
ISBN: 9780618974122
Author: Andrei Straumanis
Publisher: Cengage Learning
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Textbook Question
Chapter 7, Problem 12CTQ
Fill in the blanks: cis-1,3-Dimethylcyclohexane has two different chair conformations: one withboth methyl groups in __________ positions and one with both methyl groups in ____________ positions.
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Draw the formula for all the possible chair conformations of the following cyclohexanes. Indicate the stable conformer.
How To Draw the Two Conformations for a Substituted Cyclohexane ?
Indicate the position, axial or equatorial, of the substituents in the more stable chair conformation.
CH3
Methyl is [A]
OH is [B]
Isopropyl is [C]
Cl is [D]
HO`
CI
Chapter 7 Solutions
Organic Chemistry: A Guided Inquiry
Ch. 7 - Prob. 1CTQCh. 7 - Prob. 2CTQCh. 7 - Prob. 3CTQCh. 7 - Draw wedge and dash skeletal representations of...Ch. 7 - Label each ring in Figure 7.2 cis or trans.Ch. 7 - Prob. 6CTQCh. 7 - Prob. 7CTQCh. 7 - Prob. 8CTQCh. 7 - a model of cyclohexane in a chair conformation,...Ch. 7 - Prob. 10CTQ
Ch. 7 - Prob. 11CTQCh. 7 - Fill in the blanks: cis-1,3-Dimethylcyclohexane...Ch. 7 - Prob. 13CTQCh. 7 - Prob. 14CTQCh. 7 - Prob. 15CTQCh. 7 - Prob. 16CTQCh. 7 - Prob. 17CTQCh. 7 - Prob. 18CTQCh. 7 - Draw chair representations of...Ch. 7 - Which stereoisomer in the previous question is...Ch. 7 - Prob. 21CTQCh. 7 - Prob. 1ECh. 7 - Label each of the following as cis, trans or...Ch. 7 - Which pair has more in common with one another?Ch. 7 - Prob. 4ECh. 7 - Prob. 5ECh. 7 - Prob. 6ECh. 7 - Fill in the table by drawing a representation of a...Ch. 7 - Prob. 9ECh. 7 - True or False: If you perform a chair flip on...Ch. 7 - Prob. 11ECh. 7 - Prob. 12ECh. 7 - Prob. 13ECh. 7 - Prob. 14ECh. 7 - Prob. 15ECh. 7 - Draw trans-1-tert-butyl-3-methylcyclohexane in its...Ch. 7 - Build a model of methylcyclohexane, and use the...
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- Define Conformations of Butane ?arrow_forward1 F1 Q @ 2 F2 W Draw the two chair cyclohexane conformations for the compound shown below. How many substituents are axial in the less stable conformation? >> F10 #3 3 C/ "CI 00 01 02 03 A Moving to another question will save this response. 80 F3 F4 ㅎ... E S4 $ R % 5 F5 T MacBook Air F6 6 Y & 7 F7 U * 00 8 DII F8 ( 9 F9 ) 0 1 I Parrow_forwardWhich are the correct conformations of 2,2-dimethylpentane?arrow_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_forwardIt is easy to imagine a cyclohexane as a flat hexagon and a lot of the time we draw it that way. Looking at 1,3,5-triethylcyclohexane we cannot tell the stability of the molecule from looking at the flat 2D drawing. Explain why we need to look at the 3D configuration and what conformation (axial,equatorial) would each of the three ethyl groups be in for the most stable configuration.arrow_forwardPerspective drawings of Chair and Boat Conformers fo Cyclohexane (C6H12). Note it is impossible to place all the carbons in the same plane without straining the bonds. Take two opposite carbons and pull both of them up to make one conformation adn then pull one of them down to make the other conformation. Can you inercovert one conformer int othe other without breaking any bonds? Explain why these represent conformers and not isomers.arrow_forward
- NAME: 1. Draw the 2 chai conformations of cis-1-tert-butyl-2-ethylcyclohexane. Circle the most stable conformation of the moleculearrow_forwardWhich of the following statements are correct? * Conformation exist in a dynamic equilibrium state. Conformers differ largely in energies. Conformers cannot be separated. Amount of more stable conformers is more than that of less stable conformers at equilibrium.arrow_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_forward
- Place the methyl groups by drawing the axial and equatorial positions on the cyclohexane structure in the chair conformations next to the cyclohexane derivatives named below.arrow_forwardConstruct the chair structures with the molecular models for trans-1-ethyl-3-methylcyclohexane. Find the energy of each conformer, the equilibrium constant Keq, and the percentage of each conformer at 25oC. Indicate which conformer is more stable.arrow_forwardO OWLV2 | Online teaching and learning resource fro. C Indicate Whether The Pair Of Structurės Shown Re. G different coniormations Paraphrasing .ewriting Tool Car note Pirate Ship BLACKBOARD [Review Topics] [References) 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. CI CI H H. H. ČH3 CH3 different conformations e CH3 CH3 CH3 H. req CH3 same conformation Retry Entire Group 7 more group attempts remaining Submit Answer Previous Next Save and Exi étv 15 MacBook Air 80 888 DII DD F3 EZ F9 F10 F11 F12 # 2$ % & * ( + 4 5 6 7 8. 9. { } E Y U %3D G H J K L + || .. .-arrow_forward
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