1. (a) Draw the two chair conformations for this molecule. (3 pts) (b) Label the more...
For the following pairs of isomers draw both the chair conformations. Based on your chair conformations state which isomer will be more stable: Draw the most stable conformation looking down the C3-C4 bond of 4-bromo-3,6-dimethylhept-1- -3-ol in the Newman projection where C3 is the front carbon and C4 is the back carbon: Starting with the conformation you have drawing show the 5 other conformations representing 60 degree rotations of the BACK carbon in an anti-clockwise direction. For the six conformations...
1. Draw (1S,3S)-3-aminocyclohexanecarbonitrile structure below: 2. Draw the two chair conformations of the above disubstituted cyclohexane compound, before and after ring-flip. 3. Draw the Newman projections of both chair conformations about the C1−C6 and C3−C4 bonds. 4. Which conformation is the least stable one? Briefly explain your answer with words AND by showing it on the appropriate Newman projection.
16. Draw the Newman projection (viewing down the C3-C4 bond) for the two staggered conformations of hexane that have different energies. Indicate the conformation with the lowest energy. (5 pts) 17. Consider the molecule below. (10 pts) CZ Bry Br CI a) Is this molecule chiral? Provide an explanation. b) Draw both chair configurations for this molecule, and circle the more stable conformation (if applicable).
Draw the following conformations
I) Conformations - Draw the following conformations of each molecule. a) Newman projection along the C1-C2 bond; a circle is provided for you. Circle all the terms that correctly describe that conformation. P.. H OH Circle ALL that apply: H anti gauche HH eclipsed staggered b) Newman projection along the C2-C bond; a circle is provided for you. Circle all the terms that correctly describe that conformation. Circle ALL that apply: HH anti gauche - OH...
3. a) Draw both chair conformations for the molecule shown
below. (2pts) b) Circle the most stable conformation above. Give a
brief explanation on why your choice is more stable. (2pts)
b) Circle the most stable conformation above. Give a brief
explanation on why your choice is more stable. (2pts)
3. a) Draw both chair conformations for the molecule shown below. (2pts) HO OH b) Circle the most stable conformation above. Give a brief explanation on why your choice is...
6) (10 Pts) Draw the most stable and the least stable Newman projection for the following molecule looking down the indicated bond. Most Stable Least Stable 7) (16 Pts) Draw the most stable and the least stable chair form for the molecule below. You must also draw the Newman projection for both chair conformations looking from the direction indicated by the arrows. More stable chair Newman Projection -more stable chair less stable chair Newman Projection -less stable chair
6) (10...
draw the Newman projections. questions 1,2 and 3
1. (1 pts) 1 pts) Draw the Newman projection for the following species, looking down the between (i) ethyl and carboxylic acid group and (ii) OH and carboxylic acid group as the answer). in the bond indicated. Idell as anti, eclipsed or gauche соон OH (1) anti, eclipsed or gauche COOH WH HN (ii) anti, eclipsed or gauche 2. (1 pt.) Which conformation in question 1 is more stable (a) or (b)?...
5. Draw the two chair conformations for trans-1-ethyl-3-methylcyclohexane. Label substituents as to whether they are in an axial or equatorial position. Circle the most stable conformation.
5. Construct a model of 1,2-difluoroethane. Draw the Newman projections for the staggered and eclipsed conformations of 1,2-difluoroethane. Are these molecules isomers or conformers? If they are isomers to what specific category do they belong? 6. The structure of cyclohexane (C6H12) is based on a six membered ring of carbon atoms. Construct a model of cyclohexane. Cyclohexane can exist in two conformations; the boat or chair conformation (shown below). What are the C-C-C, C-C-H, and H-C-H bond angles at each...
Conformations of Alkanes and Cycloalkanes 1) Draw a Newman projection of the anni conformation of 1.2-dichloroethane che conformation of 1.2-dichloroethane 2) Draw a Newman projection of the 5) Sight along the C2-C3 bond of 2-methylbutane and draw each of the staggered conformations 4) Arrange the following conformations from lowest to highest energy. CH CH 5) Circle the Most stable conformation of the molecule shown below. н сн, YI 6) Circle the Most stable conformation of the molecule shown below.