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- a) Sighting down the C3-C4 bond, draw the gauche (60 degrees) and anti (180 degrees) Newman projections of 2,4-dimethylhexane. b) Circle the conformation that you drew that is lower energy.Draw Newman projection: a) for the least stable conformation of 3- Methylbutane, view 2-3 bondb) The conformation with 2 Gauche interactions of 2-methylbutane view 2-3 bondFor rotation about the C3-C4 bond of 2-chlorohexane: a) Draw a Newman projection showing the most stable conformation. b) Draw a Newman projection showing the least stable conformation.
- What is the most stable chair conformation form of trans 1 -tert-butyl -3-methylcyclohexane? a)Axial tert-butyl, equatorial methyl b)Axial tert-butyl,equatorial methyl c)equatorial tert-butyl, equatorial methyl d)equatorial tert-butyl, Axial methylDraw 5 more Newman projections and rank them from most stable to least stableConformer E is a (cis/trans) isomer. A conformational ring flip of conformer E will yield conformer F in which the substituent on carbon 1 will be (axial/equatorial/neither) and the substituent on carbon 3 will be (axial/equatorial/neither). Conformer (E/F) will be more stable.
- Which has the greater delocalization energy? CH2=CH-CH=CH2 or CH3-C=O-O-4.28 Identify which C-H bonds are axial and which are equatorial in the following Newman projection for cyclohexane.I'm stuck on the numbering. How do I get this newman projection to be trans 1-3-dimethycyclohexane in the chair form?
- Why is this chair conformation the most stable trans-1-chloro-3-flurocyclohexane? Wouldn't the conformation with Cl & F in equatorial positions be the most stable conformation?Will you always have a stable Newman chair? For example you have a cyclohexane and on 1 and 2 you have wedge methyl coming out and 4 and 5 you have dash Cl. What would the stable chair be. I think there is noneConsider 1– Bromo – 2– methylbutane. A. Looking down at the C1:C2 bond draw the Newman projection with the lowest energy B. looking down at the C1:C2 bond draw the Newman projection highest energy
