1. [1 mark] Circle the correct Newman projection formula showing a staggered conformer of hexane. B)...
Using the Newman projection, draw a staggered conformer and an eclipsed conformer for 1-chloropropane, Cl - CH_2 - CH_2 - CH_3, along with the bond indicated by (*). Why can these conformers be interconverted? What structural feature prevents the conversion of cis-2-butene into trans-2-butene by a simple rotation?
1) 2) 3) Translate the given theoretical conformer from the Newman projection to its wedge-and-dash drawing. (Replace the provided placeholder H atoms with the appropriate atom/group). Translate the given theoretical conformer from the wedge-and-dash drawing into its Newman projection. Translate the given conformer from the wedge-and-dash drawing into its Newman projection. Select the correct Newman projection below, and drag the three groups (CI, Br, and CH3) to their correct locations.
a. Give the Newman Staggered screening (alternate) for Ethane b. Give the Newman's projection of the most stable conformer at carbons 2 and 3 for Butane.
correct? 9. Draw the Newman projection of the conformations. Lion of the compound below in Staggered, Guache, Eclipsed, and Anti OH the CH3- ulill Anti Gauche Eclipsed of zu Hot Chich HT CHz # Ins Staggered
In-Class Worksheet In the box below each molecule, draw Newman projections for the structures A, B, and C shown from the perspective indicated. For each Newman projection that you've drawn, indicate if there are any eclipsed bonds or 1. gauche butane interactions. H H CH3 H3C CH3 CH3 H. H3C CH3 H CH3 H H Structure C Structure B Structure A Structure A can exist in a lower energy conformation by undergoing a bond rotation; draw the Newman projection of...
13) Draw the Newman projection of all of the staggered conformations of 1-bromo-2-chloroethe and circle the most stable structure(s). Label all of the structures as to whether the bromine chlorine interaction is gauche or anti. 14) Draw the two chair conformations of cis-4-tert-butylcyclohexanol, Circle the one that is the most stable. 15) How many chirality centers are in the following molecule? Mark them all with an asterisk. он он WOH он он 16) What is the relationship between the following...
Problem 4 Give the IUPAC name for each Newman projection. the folle eniwoll ot orl broo 6lumol be F ormula CH (H3C)2HC CHз CH(CH9CHIC CH CH HаС CH(CH2CH2CH3)CH3 CH3 Problem 3 Sroldo For the following molecule answer the following questions. (a) Using Newman projections, draw all staggered and eclipsed conformations (6 in total) that result from rotation around the bet014 indicated bond in each molecule; (b) Draw a graph of energy versus rotation around this bond. CI H
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).
5. Provide the mechanism for the reaction shown below. Provide a Newman projection showing the proper orientation of the molecule for the intermediate formed prior to the rate-determining step. Stereochemistry MUST be correct.(7 points) H I ?? KOH CH3CH2 H CH3CH2 CH3 Mechanism: Newman Projection
20. Choose the Newman projection that corresponds to THIS EXACT CONFORMER of the compound shown below. Me H HMe Br Br HH Me. H Me H Me H Et H Br H Br Br Me Et Br Me H HS Me Me Br Me -ΕΙ Me Et Et Et Me A B D E F Explain H н Me Br Br Me CH 21. Choose the highest energy Newman projection. Ø Me Et HH Me Me H Me H Et...