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DRAW THE (C2-C3) NEWMAN PROJECTION OF THE MOST STABLE AND LEAST STABLE
- 2-Methylbutane
- 2,2-Dimethylbutane
- 2,3-Dimethylbutane
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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 the most and least stable Newman projections for the following molecules ( focus on C2 and C3). a. 2-chloro-2- fluoropentane b. 2,2-dimethylbutane C. 2-chloro-2-methylpentane d. 1,2-dibromoethaneConsider 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
- Then draw the most stable and least stable Newman projection conformation from the C4-C5 bond in the molecule aboveDraw a Newman projection, similar to Figure 3-25, down the C1¬C6 bond in the equatorial conformation of methylcyclohexane. Show that the equatorial methyl group is also anti to C5.Which Newman projection is the most stable conformed for (S)-4-chlorobutan-2-ol?
- Draw the Newman projection of the methylcyclohexane looking along the C1 – C2 and C5 – C4 bonds.Draw 2,4-dimethylhexane as a bond-line structure. Then, looking down the C3 – C4 bond, draw a Newman projection representation of the 1) lowest energy (most stable) and 2) highest energy (least stable) conformations.Complete the Newman projection below to draw the most stable conformation of 3-methylpentane, looking down the C2-C3 bond. Identify each substituent using "H" for hydrogen and "Me" for methyl. a= b= c= d=