Which of the Newman structures below represents this conformation of 2-chloropentane, as viewed along the C2-C3 bond?ball & stick+ labelsHHCIEtHEtHHHHCIHCICH3H3CCIH₂CHHTHHEtEtCH3daZzb(Enter the letter(s) of the correct structure(s). in alphabetical order and without punctuation; more than one answer may be correct. Et =

Step 1: Step 2:In the above model, at the carbon 2 and the carbon 3 methyl and ethyl groups anti to…

Answered: Which of the Newman structures below…

Organic Chemistry

9th Edition

ISBN:9781305080485

Author:John E. McMurry

Publisher:John E. McMurry

Chapter3: Organic Compounds: Alkanes And Their Stereochemistry

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Problem 47AP: Draw the most stable conformation of 1,4-dichlorobutane, using wedges and dashes to represent bonds...

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Draw the most stable conformation of 1,4-dichlorobutane, using wedges and dashes to represent bonds coming out of the paper and going behind the paper, respectively.
2. Draw Newman projections (= 60° increments) of the conformations of 2R-bromobutane from C2-C3. Indicate anti, gauche and eclipsed conformations. Indicate the most and least stable conformations.
Construct 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.
5. Draw the two chair conformations ("ring filips") of trans –1- ethyl-4-methylcyclohexane to show the axial and equatorial substituents (including all hydrogens). Then determine which of the two conformations is more stable and why.
Draw Newman's projections along the C3¬C4 bond to show the most stable and least stable conformations of 3-ethyl-2,4,4-trimethylheptane.
11. Which one of these forms of 1,2,4-trimethylcyclohexane can have a chair conformation in which the methyl groups are all equatorial? III ++ |||| A B с D E
Cyclohexane derivatives exist primarily in the most stable of the available chair conformations. Give the position, axial or equatorial, of each of the three groups shown when the ring is in the most stable chair conformation. If a group divides its time equally between axial and equatorial positions, indicate this with ax/eq.
Which of the following line drawings represents the correct stereochemistry o molecule shown in the Newman projection below? E + Н. H I CH₂CH3 LOH H CH3 OH OH || IV OH 5.... OH A) I B) II C) III D) IV K
9. For 3-fluoro-2-methylpentane, draw the Newman projection for the: (a) lowest energy conformation; (b) highest energy conformation, looking down the C-2 and C-3 bond length. You can use the following as shorthand: Me = methyl; Et = ethyl. (a) (b)
Sight along the C2-C3 bond of 2-methylbutane. Draw all the staggered and eclipsed conformations.
Draw a structural formula of the S configuration of the compound shown below. • Use the wedge /hash bond tools to indicate stereochemistry where it exists. Include H atoms at chiral centers only. • Ifa group is achiral, do not use wedged or hashed bonds on it. CH3 CH3 CH;CHCHCN CH,CH,CH,CHCH,CH, CH2NH2 Draw a structural formula of the RS configuration of the compound shown below. Use the wedge /hash bond tools to indicate stereochemistry where it exists. • Include H atoms at chiral centers only. If a group is achiral, do not use wedged or hashed bonds on it. ÇI
Please help me with my conformations assignment! Thank you!!

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