In the most stable chair conformation, (-)-menthol has how many of the non- hydrogen groups (OH, methyl, isopropyl) in axial positions? (-)-menthol one zero two Othree OH
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- Which chair conformation is more stable? Is it the right because bromine has a larger mass than a methyl group? Or is it the left because the methyl group has three hydrogens stemming from the carbon and is therefore ‘bulkier?’Draw the most stable chair conformation of mentol and label each substituents as axial or equatorial.a model of cyclohexane in a chair conformation, and explain why the names “axial” and“equatorial’ are appropriate.
- 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.Answer the following question about compounds A–D (See in attachment) How are the compounds in each pair related? Choose fromconstitutional isomers, stereoisomers, or identical molecules: A and B; A and C; B and D.Strain of one Strain of one 1,3-diaxial interaction 1,3-diaxial interaction Strain of one 1,3-diaxial interaction H X Ph (C6H5) CO,H CN F 0.12 Me 0.9 1.5 Cl 0.7 0.1 0.25 Et 0.95 Br 0.25 i-Pr 1.1 OH 0.5 t-Bu 2.7
- Draw the most stable chair conformation (equatorial vs axial) of β-D-mannose. Please number the carbons.Draw the most stable chair conformation of the following chair confirmation.Draw the most and least stable conformations of the following substituted cyclohexanes in the chair format (excluding transient conformations like half chair, twist boat and boat).
