Answer 1.. 2. What dictates THE correct Newman projection? 2. Answer to: Use a Newman Projection to draw the most stable conformation of 3-methylpentane, looking down the C2-C3 bond. Draw the energy diagram for the rotation of the bond highlighted in pentane. Thank you. Jessie Key on Happy Birthday Open Textbook Project/My Adventures Adapting a Chemistry Textbook; Archives. "Draw a Newman projection for the most stable conformation of 2, 3-dimethyl-pentane looking down the C2---C3 axis." Draw Newman projections of the eclipsed and staggered conformations of propane.

Draw an energy diagram showing the conformational analysis using the Newman Projection above (showing a 360 degree total rotation, 60 degrees at a time). 2. 3. 3-Methylhexane can be used as a model alkane to study: • Cu-catalyzed hydrocarboxylation of simple alkanes to corresponding branched monocarboxylic acids in aqueous medium at low-temperature. Need help understanding these. Draw a Newman projection of 2-methylpentane such that the drawing is clearly an anti conformation.-Can you also do Staggered, Eclipsed, Gauche. Figure %: Staggered conformations of pentane. The question gives two points for "any correct Newman projection" and two points for "THE correct one". • FeCI 3 catalyzed photooxygenation of simple alkanes to corresponding alcohols in presence of atmospheric O 2.

The C_2 carbon will be in the front and the C_3 carbon will be in the back, which will result in Projection 1 All the groups are accounted for: two hydrogen atoms and a methyl group connected to C_2 and a methyl group, a hydrogen atom and an ethyl group connected to C_3. For each of the following, draw the best (most stable) and worst (least stable) Newman projection, relative to the bond indicated in each question. A Newman projection can be used to visualize any sort of bond, not just a single bond between carbons of an alkane. Draw the Newman Projection of pentane looking down the C2-C3 bond in a staggered confirmation. Draw a Newman projection, looking down the C 2-C 3 bond, of 1-butene in the conformation shown below.

B is highest energy, A and C are equal in energy . (3 points) Write Newman projections for all three staggered conformations of 2-methylpentane, viewing down the C2-C3 bond (C2 in front).

Newman projections are important in organic chemistry to help you understand one aspect of molecular conformations. Previous question Next question Get more help from Chegg. Draw a Newman projection, looking down the C 2-C 3 bond, of 1-butene in the conformation shown below. Start by placing these groups on a Newman projection template. 3. 1.

1. • Au-catalyzed oxygenation of alkanes with H 2 O 2 in acetonitrile. Draw Newman projections of the eclipsed and staggered conformations of propane. Chapter 3 Quiz: Chem 334 - Fall 2005. These videos will help you understand everything from Newman projection basics, how to convert Newman to other forms, how to analyze the energy of particular conformations, and of course how to draw an energy diagram. The most stable conformations will be staggered conformations with the largest groups ANTI to each other. This projection is named after American chemist Melvin Spencer Newman, who introduced it in 1952 as partial replacement for Fischer projections, which are unable to represent conformations and thus conformers properly. Estimate the potential energy of each 60 degree turn as you do not have data to calculate the values exactly. 1. Label the three A, B, and C, and compare them in terms of their relative energy. Draw the energy diagram for the rotation of the bond highlighted in pentane. 2. By "any correct Newman projection," is it referring to any conformation whereas "THE correct one" must have the … June 2020; June 2016; June 2015; February 2015; January 2015; October 2014; September 2014; August 2014; July 2014; March 2014; February 2014; January 2014; September 2013; August 2013; Categories. Exercises.

Expert Answer . Newman Projections – More Practice – Answer Key I. 3.

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