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- Consider the molecule 1-bromo-2-methylbutane. C3 and C4 should be drawn as Et as in theexample. This group is called an ethyl group and can be considered a sphere about twice the sizeof a methyl group. Draw the following Newman projections sighting down the C1C2 bond... a. The lowest potential energy conformation. b. The highest potential energy staggered conformation.Build a model of methylcyclohexane, and use the model to complete the following Newmanprojections of methylcyclohexane in the chair conformation: a. When the methyl group is in an axial or equatorial (circle one) position, the molecule is inits lowest potential energy conformation. b. Label one Newman projection above anti and the other gauche to describe the relationshipbetween the methyl group and C3 of the ring. c. In general, which is a lower PE conformation, anti or gauche? d. Explain how your answer to b and c provide an explanation for why it is more favorable fora large group to be in an equatorial than an axial position.We consider the following molecule A: And. THIS Of the following Newman projections, indicate: MeEt F F Me 1 Br 5 Br F And Me THIS CH2CH3 AT CH2CH3 "CH3 Br Br Me Me. THIS 2 Br 6 And And .And And Br CI Me F And 3 F And 7 Me the one that corresponds to the least stable conformation of molecule A: And Br And the one that corresponds to the most stable eclipsed conformation of molecule A: CI Me THIS And Br And Br F F And Me And Choose... Choose... the one that corresponds to molecule A as seen by the eye of the observer in the statement: Choose... the one that corresponds to the least stable staggered conformation of molecule A: the one that corresponds to the most stable conformation of molecule A: Choose... Choose... ◆
- Sight along the C2 - C; bond of 2,3 -dimethylbutane, and draw a Newman projections for all the staggered and eclipsed conformation. Draw the expected potential energy diagram for this molecule. 2 3 4 ĈH3-CH2 – CH – CH3 CH3 CH3 2, 3 - dimethyl butanences IMalings REVIEW VIew E. 三 2 T Aa - AaBbCc[ AaBbCc[ AaBbCc[ AaBbC ay - A 三,這, T Normal 1 Body Text 1 List Para... T No Sp Paragraph Styles Q2. Draw all possible Newman projections for the below structure by sighting along the indicated bond. Arrange the relative stability of all conformations by assigning a number (1 for the least stable and highest number for the most stable) C3-C-4I 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
- Following is a staggered conformation for one of the enantiomers of 2-butanol Q. viewed along the bond between carbons 2 and 3, draw a Newman projection for this staggered conformation.Draw the Newman projections for one staggered and one eclipsed conformation of the molecule below, viewed down the indicated bond in the direction of the arrow. F CI HS HCH Part 1 of 2 SH Draw the Newman projection for a staggered conformation of the molecule shown above. F H₁C HS Cl SH H > >Draw (1R,3S)-1,3-dimethylcyclohexane, in its minimum energy conformation. Then draw the Newman Projection for this structure with the correct stereochemistry and in its minimum energy state.
- Draw the Newman projections for one staggered and one eclipsed conformation of the molecule below, viewed down the indicated bond in the direction of the arrow. F H HS CH, Part 1 of 2 CH 3 Draw the Newman projection for a staggered conformation of the molecule shown above.1. Please first draw a Newman projection representing correct staggered conformation (projection through the green bond). 2. Then identify the eclipsed least stable conformation for the following compound: H₂C. H₂C H- H A Et CH3 Me Et Me Me H Me H B CH3 CH3 Me H Et CH3 Et Me H₂C. H H- H C CH3 Et H CH3 Me Et Me Me H₂C H Me H D CH3 Et Me H CH3 Me EtWhich of the following is a Newman projection for the following compound as viewed down the indicated bond in the conformation shown? H. CH3 01 O II O III OIV Et CH3 1 Et H I CH3 13X Et CH3 -H || CH3 Et H CH3 Et Et ||| CH3 H H H CH3 Ø CH3 H CH3 IV