a. Draw the conformation of the molecule below after it undergoes a ring flip. conformation that is highest in energy? carbon? 1: ; 2: 4: b. Circle the c. What is the stereochemistry designation at each chiral ring flip
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- Indicate the relationship between each pair. Choose from: configurational stereoisomers,conformers, constitutional isomers, or different formulas (Each term is used at least twice.)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.
- Which stereoisomer in the previous question is lower in PE? Explain your reasoning.Drawn are four isomeric dimethylcyclopropane. a. How are the compounds in each pair related (enantiomers, diastereomers,constitutional isomers): A and B; A and C; B and C; C and D?b. Label each compound as chiral or achiral.c. Which compounds, alone, would be optically active?d. Which compounds have a plane of symmetry?e. Which of the compounds are meso compounds?f. Would an equal mixture of compounds C and D be optically active? Whatabout an equal mixture of B and C?g. How many stereogenic centers are there for each compound?a. What is the name of this molecule according to IUPAC? ÇI F. b. The molecule is chiral; identify the chiral centers. Draw all possible stereoisomers, identify enantiomer pairs and assign absolute chirality
- Ans.Drawn are four isomeric dimethylcyclopropanes. A B C D a. How are the compounds in each pair related (enantiomers, diastereomers, constitutional isomers): A and B; A and C; B and C; C and D? b. Label each compound as chiral or achiral. c. Which compounds, alone, would be optically active? d. Which compounds have a plane of symmetry? e. f. g. How do the boiling points of the compounds in each pair compare: A and B; B and C; C and D? Which of the compounds are meso compounds? Would an equal mixture of compounds C and D be optically active? What about an equal mixture of B and C?Need help?!
- Drawn are four isomeric dimethylcyclopropanes. a.How are the compounds in each pair related (enantiomers, diastereomers, constitutional isomers): A and B; A and C; B and C; C and D? b.Label each compound as chiral or achiral. c.Which compounds alone would be optically active? d.Which compounds have a plane of symmetry? e.How do the boiling points of the compounds in each pair compare: A and B; B and C; C and D? f.Which of the compounds are meso compounds? g.Would an equal mixture of compounds C and D be optically active? What about an equal mixture of B and C?6. Which of the following is a meso compound? a. OH b. CI CH₂CH₁₂ OH- CI CH₂CH₂ C. d. H₂C "CH3CI CI a b .CI d Provide the name for each of the above compounds, and determine if the compound is chiral. (Do not include any stereochemical designations in the name. If a box is not needed, leave it blank.) a. Name: Chiral? b. Name: Chiral? c. Name: Chiral? d. Name: Chiral?