Draw the most stable and least stable Newman Projections of 2,3-dimethylbutane by viewing along the C2-C3 bond.

Draw two chair conformer of (1S,2R,4R)-4-chloro-2-methylcyclohexan-1-ol that would result from a chair flip. Include all groups of the three stereocenters, but no other hydrogens. Which conformer is favored at equilibrium?

At room temperature, the 'H NMR spectrum of all-cis-1,2,3,4,5,6-cyclohexanehexacarboxylic acid exhibits two signals for the H atoms directly bonded to the ring. Explain why. Hint: Draw its chair conformation explicitly. CO,H HO,C .CO2H HO,C* *CO2H CO,H

Your answer is incorrect. Try again. Which staggered Newman projection(s), looking down the C-2-C-3 bond (C-2 in front and C-3 in back), illustrates the following boxed compound? H₂C CH₂CH3 CI CH3 I H₂C H I, II and III II and V I and III CH₂CH3 CH3 IV H₂C IV only None of these choices. II CH₂CH3 CH3 CH3 H H * H H V CH 3 H CH₂CH3 III CH(CH3)CHCICH 3

Convert the following to a Newman projection using the template provided. Name the compound including R or S configuration. ļ F F

Please show the mechanism with arrow formalism.