6. Conformational Analysis: Newman Projections (25 points) Consider the rotation around the C3-C4 bond of (3R...
pt iso 5. (a) For each of the molecules below, draw a Newman projection of the conformation shown. Label any gauche interactions (i) (ii) OH B (b) Draw the Newman projections of the most and least stable conformationns of 3- methylpentane, viewed along the C-C, bond. Label any gauche interactions. example of steric strain or torsional strain? (c) Is a gauche interaction an- pt iso 5. (a) For each of the molecules below, draw a Newman projection of the conformation...
using the c3-c4 axis, draw newman projections for an eclipsed and a staggered conformation of 2.5 dimethylhexane. Draw the most stable conformation for the molecule as well.
Draw Newman Projections for 360 rotation around C3-C4 bond of 3-isopropylhexane. Label each structure as totally eclipsed eclipsed, gauche or anti. Estimate the relative energy of each structure and draw the potential energy diagram | QUESTION 6 Complete the following acid-base reaction and estimate the equilibrium constant: 2 он H2C H2 H2 QUESTION 7 If a solution of a pair of enantiomers has a measured rotation of +15°, and the pure S enantiomer has a specific rotation of +25°, what...
can you show how you got the anwser for both set by step Draw Newman projections looking down the C3 to C4 bond of (3R, 4S)-3,4-dibromoheptane Draw Newman projections looking down the C3 to C2 bond of (2R, 3S)-2-fluoro-3-ethylheptane
use a Newman projection of the C3-C4 bond of 223-trimethy1-4-phenylhexane to show the most stable conformation first. Rotate through all of the eclipsed and staggered conformations. Using the energy values provided in the tables below calculate the relative energies of the different conformations. Plot the changes in energy in the graph diagram providd. Hint: Draw a 2D structure first and "bold" the bond viewed in your Newman projection. vided. 2D Structure Approximate Eclipsing Energy Values (kcal/mole) H Me Et i-Pr...
Draw a newman projection of the most stable staggered conformation of 4-bromo-3-methylheptane looking down the C3-C4 bond. Then draw a newman projection of the least stable staggered conformation of the same compound looking down the C3-C4 bond - label where different type(s) of strain occur making this conformation less stable? I have no idea how to do this so step by step would be perfect. Thank you.
. Using the following compound answer the following questions. (30 points) a. Draw Newman projections for all the possible conformational isomers for 2,3-dibromo-pentane rotation along the axes of C2-C3. b. Label the different Newman projections. (hint: anti, eclipsed, or stagger, etc). c. Rank the conformations in order from most stable (1) to least stable. d. Base on your answer on part c take the most stable isomer and one least stable isomer and Explain in details why the difference in...
(a) Draw the saw-horse (or wedge-dash) projection of (2S,3R)-3-methylpentan-2-ol. [Marks: 1] (b) Draw the Newman projections of the 2-3 bond in (2S,3R)-3-methylpentan-2-ol. [Marks: 2] (c) Based on the Newman projections from part b. - draw a rotation vs. energy diagram (you do NOT need to give specific energy values in this diagram) that will allow you to identify the most stable confirmation around the 2-3 bond. Assume the greatest steric and torsional strain occurs when the hydroxyl and ethyl groups...
3. Consider 2,2,4-trimethylpentane Draw this compound. a. b. Now, provide Newman projections for the three staggered conformations for this compound looking down the C3 - C4 bond. c. Label the orientation of substituents (i.e. gauche or anti) in each structure and circle the most stable conformation(S)
13) A) Draw the Newman projector of the most stable conformer For rotation about the C3-C4 bond of 2-methylhexane: B) Draw the Newman projector of the least stable conformer