1. Chair Strain (a) Consider (1R,2S,3S,4S)-1,4-dibromo-2-(tert-butyl)-3-methylcyclohexane. Circle the location (axial or equatorial) for each substituent in this molecule's most stable chair conformer. (b) Br 1-Br axial equatorial ...Bu 'Bu axial equatorial "CH3 CH3 axial equatorial Br 4-Br axial equatorial Draw the most stable chair conformer, adding only the substituents (not the hydrogen groups of those stereocenters) onto the chair below. (c) Complete the table below, indicating how many of each type of interaction is present in total for the most stable chair conformer as described in (a). gauche interactions between gauche interactions 1,3-diaxial interactions substituents and the ring between substituents between substituents

1. Chair Strain (a) Consider (1R,2S,3S,4S)-1,4-dibromo-2-(tert-butyl)-3-methylcyclohexane. Circle the location (axial or equatorial) for each substituent in this molecule's most stable chair conformer. (b) Br 1-Br axial equatorial ...Bu 'Bu axial equatorial "CH3 CH3 axial equatorial Br 4-Br axial equatorial Draw the most stable chair conformer, adding only the substituents (not the hydrogen groups of those stereocenters) onto the chair below. (c) Complete the table below, indicating how many of each type of interaction is present in total for the most stable chair conformer as described in (a). gauche interactions between gauche interactions 1,3-diaxial interactions substituents and the ring between substituents between substituents

Organic Chemistry

9th Edition

ISBN:9781305080485

Author:John E. McMurry

Publisher:John E. McMurry

Chapter4: Organic Compounds: Cycloalkanes And Their Stereochemistry

Section4.SE: Something Extra

Problem 40AP: From the data in Figure 4-12 and Table 4-1, estimate the percentages of molecules that have their...

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2. Chair Strain (a) Consider the following cyclohexane derivative. Circle the location (axial or for each substituent in this molecule's most stable chair conformer. F axial equatorial Br axial equatorial Bru CH3 Ph axial equatorial Ph CH3 axial equatorial equatorial)
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Consider 2-(tert-butyl)cyclohexane-1,3-diol: a) Draw all possible stereoisomers of this molecule. Determine which are chiral, which are achiral (meso), and clearly identify the enantiomer/diastereomer relationships between them. HO. OH 2-(tert-butyl)cyclohexane-1,3-diol b) For each unique diastereomer, draw its most stable chair conformation.
DI Chrome с File Edit View History Aktiv Chemistry 1 C app.101edu.co E ||| esc ! 1 H H Н. Q CH3 CH3 H @ H CH3 2 I I H CH3 V X W Bookmarks Profiles Tab Window Help H + H || Identify the Newman projection that depicts the anti conformation of butane. H3C CH3 1,503 H # H 3 IV H CH 3 HE H D FH CH3 I E H $ H 4 CH3 ∙H CH3 JUN 30 R % 5 T 8 6 121 MacBook Pro & PAGES 7 W Y U 1 8 A) I B) II C) III D) IV E) V ~ - 9 A 0 0 O 15% ( P Thu 8: + 11 { [ K
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2. Chair Strain (a) Consider the following cyclohexane derivative. Circle the location (axial or for each substituent in this molecule's most stable chair conformer. (b) (c) ( F axial equatorial Br axial equatorial Br CH3 Ph axial equatorial Ph CH3 axial equatorial equatorial) Draw the chair conformer described in (a), adding only the substituents (not the hydrogen groups of those stereocenters) onto the template below. O Complete the table, indicating how many of each type of interaction is present in total for the chair conformer described in (a). gauche interactions between gauche interactions substituents and the ring between substituents 1,3-diaxial interactions between substituents (d) ( Draw the other conformer that results from a chair flip onto the template below. Ma the changes that happen in the chair flip, but don't make other changes. Only draw substituer
I H. H H. H Identify the Newman projection that depicts the eclipsed conformation of butane. CH3 I H CH3 H CH3 H CH3 || IV `H I H H H CH3 H H V H3C CH3 J HH H CH3 H -H CH3 FH CH3 A) I B) II C) III D) IV E) V
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1. The cyclohexane derivative shown below exists primarily in its most stable chair conformation. Given this, indicate which positions (axial or equatorial) the indicated groups [(1)-(3)] would occupy in the most stable chair conformation. н (2) (3) a. (1) = equatorial; (2) = axial; (3) = equatorial b. (1) = equatorial; (2) = equatorial; (3) = equatorial c. (1) = axial; (2) = equatorial; (3) = equatorial d. (1) = axial; (2) = axial; (3) = equatorial %3D %3D %3D 2. Which structure shown below has a chiral center? -Br HO OH a. b. с. d. 3. Consider a Reaction Coordinate diagram for a one step reaction (not provided). Which of the following species would be the highest in energy? a. Intermediate b. Transition state c. Reactants d. Products
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