H5.31 - Level 2
Consider the most stable chair conformation of all cis-4-tert-butyl-1,2-dimethylcyclohexane (all substituents are cis on the molecule). What is the bond angle between the two methyl groups when looking down the C1-C2 bond?
A 45˚
B 60˚
C 109.5˚
D 120˚
E 180˚
H5.31 - Level 2 Consider the most stable chair conformation of all cis-4-tert-butyl-1,2-dimethylcyclohexane (all substituents are...
The most stable conformation of cis-1-tert-butyl-4-methylcyclohexane hasA) both groups equatorialB) both groups axialC) the tert-butyl group axial and the methyl equatorialD) the tert-butyl group equatorial and the methyl axial
11. Build the chair and boat conformations and identify the most stable conformation. Identify the 1,3-diaxial interactions. 12. Draw the most stable conformation of (a) ethylcyclohexane (b) 3-isopropyl-1,1-dimethylcyclohexane (c) cis-1-tert-butyl-4-isopropylcyclohexane 13. Draw all possible conformations of 1,4-dimethylcyclohexane and identify the most stable conformation 14. (a) Draw both chair conformations of cis-1,2-dimethylcyclohexane, and determine which conformer is more stable. (b) Repeat for the trans isomer. (c) Predict which isomer (cis or trans) is more stable. 15. (a) Draw both chair conformations...
8 Draw your two products (each in the most stable chair conformation) below using the numbering provided Show only the OH and terr-butyl groups on the ring a) label cach group as equatorial (eq) or axial (x). b) label each group as top face (top) or bottom face (bot). trans-4-tert-butylcyclohexanol cis 4-tert-butylcyclohexanol 9. When looking at the two compounds prepared in this reduction, which compound is more stable, cis or trans? Circle your answer. 10) Draw the most stable chair...
1. Draw a chair conformation of cis-1-tert-butyl-2-ethyleyclohexane. Then, ring flip the chair to generate the other chair conformation, Circle the most stable conformation of the molecule (8 pts). 2. Designate the RIS configuration of all the stereocenters in the following molecules (8 pts): OH HO+CH3 H oH CHCI 3. Identify the relationship between the following molecules as: identical, constitutional isomers. enantiomers, or diastereomers (8 pts). enantiomers. e home enantiomers diastereomers. ó Tenantiomers. I Ć dias tereomers. MAC mome of the...
1. Now construct cis-1,2-dimethylcyclohexane in the chair conformation and draw it. Perform the ring flip and draw that conformation. Which of the two conformations is preferred? This compound is meso, find the conformation that accounts for this? 2. Construct and draw trans-1-ethyl-2-methylcyclohexane in the chair conformation. Perform the ring flip and draw that conformation. Which conformation is preferred/most stable? Why? Construct and draw the cis isomer in the most stable chair conformation. Perform the ring flip and draw that conformation....
Which of the following is the most stable conformation of cis-1-(tert-butyl)-2-methylcyclohexane? Bul But Bul Me Me Me (b) But But But Me Me Me (d) ( e)
How would you draw the most stable conformation of trans-1-tert-butyl-3-methylcyclohexane? Axial tert-butyl group on C-1, Axial methyl group on C-3 Equatorial tert-butyl group on C-1, Axial methyl group on C-3 Axial tert-butyl group on C-1, Equatorial methyl group on C-3 Equatorial tert-butyl group on C-1, Equatorial methyl group on C-3 Choices b and care both correct Choices a and d are both correct Submit Answer Tries 0/1 How would you draw the most stable conformation of cis-1-chloro-3-fluorocyclohexane? Axial chlorine on...
1. Draw the chair conformation for the following molecules: 이 2. Draw the most stable conformation for the following molecules: a) cis-1-ethyl-3-methylcyclohexane b) trans-1-tert-butyl-4-ethylcyclohexane c) (1R,2R,4S) 2,4-dimethyl-1-isopropylcyclohexane
How would you draw the most stable conformation of trans-1-tert-butyl-2-methylcyclohexane? O Axial tert-butyl group on C-1, Axial methyl group on C-2 Equatorial tert-butyl group on C-1, Axial methyl group on C-2 O Axial tert-butyl group on C-1, Equatorial methyl group on C-2 O Equatorial tert-butyl group on C-1, Equatorial methyl group on C-2 Choices b and c are both correct Choices a and d are both correct Submit Answer Tries 0/1
Question 1.) Which of the following describes the most stable conformation of trans-1-tert-butyl-3-methylcyclohexane? a.) Both groups are equatorial. b.) Both groups are axial. c.) none of these d.) The tert-butyl group is axial and the methyl group is equatorial. e.) The tert-butyl group is equatorial. Question 2.) Alkanes with one to four carbons exists as gases at room temperature. a.) True b.) False Question 3.) How many monochlorination products would be obtained from the chlorination of pentane a.) 1 b.)...