Organic Chemistry: A Guided Inquiry
2nd Edition
ISBN: 9780618974122
Author: Andrei Straumanis
Publisher: Cengage Learning
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Chapter 7, Problem 5CTQ
Label each ring in Figure 7.2 cis or trans.
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Consider 1,2-dimethylcyclohexane.
a.Draw structures for the cis and trans isomers using a hexagon for the sixmembered 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?
4. Circle any n-conjugated portions in the molecules below. Draw all resonance structures for each
conjugated molecule.
OCH3
H2C=CH-C=N
CH3
CH2
H2C
Please identify the correct ring flipped structure of compound XYZ.
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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- Draw a resonance structure, complete with all formal charges and lone (unshared) electron pairs, that shows the resonance interaction of the cyano with the ortho position in benzonitrile. CEN benzonitrile • You do not have to consider stereochemistry. • Include all valence lone pairs in your answer. • In cases where there is more than one answer, just draw one.arrow_forwardConsider 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_forward7. In each pair, circle the compound that is more stable. .CF3 H Harrow_forward
- help with question 2 pleasearrow_forwardDraw Newman structures for the structure shown below through the highlighted bond that correspond to the marked points on the energy diagram.arrow_forwarddraw all the molecule separately in chemdraw like in step 1 draw one compound , in step 2 draw another , for the last compound draw structure and arrow and written part below and above itarrow_forward
- Consider the substituted cyclohexane shown in the ball-and-stick model.a. Label the substituents on C1, C2, and C4 as axial or equatorial.b. Are the substituents on C1 and C2 cis or trans to each other?c. Are the substituents on C2 and C4 cis or trans to each other?d. Draw the second possible conformation in the chair form, and classify it as more stable or less stable than the conformation shown in the three-dimensional model.arrow_forwardConsider the substituted cyclohexane shown in the ball-and-stick model.a.Label the substituents on C1, C2, and C4 as axial or equatorial. b. Are the substituents on C1 and C2 cis or trans to each other? c.Are the substituents on C2 and C4 cis or trans to each other? d.Draw the second possible conformation in the chair form, and classify it as more stable or less stable than the conformation shown in the three-dimensional model.arrow_forwardRank the substituents on the asterisked (*) carbon from lowest to highest priority. Select answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a b C aarrow_forward4. Which structure below represents the most stable conformation of cis-1-t-butyl-4-methylcyclohexane? A B D 5. The planar form of which ring would have bond angles close to the tetrahedral value, but is destabilized by eclipsing interactions (torsional strain)? Which of the following statements about conformations is FALSE? A) Conformations can be isolated and separated at room temperature B) Conformations are interconverted by rotation about o-bonds C) For butane the staggered anti conformation is the most stable D) For ethane the eclipsed conformation is the least stable 6. 7. Which of the following compounds has two chirality centers? .H H. H3Carrow_forwardUse 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.arrow_forwardFor each compound shown below, draw representations for the cis and trans isomers using a hexagon for the six-membered ring, and wedges and dashes for substituents. [1] [1] cis: [2] cis: or [3] cis: ere to search draw structure... draw structure ... draw structure ... ㅍ Bi [2] trans: trans: trans: draw structure... draw structure... draw structure... lyarrow_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_ios
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