1d. Draw the most stable chair conformation for each of the two diastereomeric substitution products obtained below. CH3OH CH3OH2 Br + reflux Br +
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- Two conformations of cis-l, 3-dimethylcyclobutane are shown. What is the difference between them, and which do you think is likely to be more stable?Lithocholic acid is an A–B cis steroid found in human bile. Draw lithocholic acid showing chair conformations, as in Figure 27-11, and tell whether the hydroxyl group at C3 is axial or equatorial.Indicate the relationship between each pair. Choose from: configurational stereoisomers,conformers, constitutional isomers, or different formulas (Each term is used at least twice.)
- Draw the Newman projections of the three p0ssible staggered c0nf0rmati0ns 0f 2,3-dimethylbutane, viewed through the C2—C3 b0nd. What are the relative energies 0f each conformation?Draw the most stable chair conformation possible for this compound. Are there any 1,3-diaxial interactions in the most stable chair conformation ( H-H not included ) and please fill in the blank: From the biomolecules surveyed, the compound is a(n)___________Eclipsed adn Anti C2H6 a)Perspective drawings of both conformers b)What is the relationship between the above two structures? How many different eclipsed or anti conformers can you make by rotating around teh C-C bond?
- label the stereocenters r,s,e,z and specify if any are meso. whats are the products to each orher? draw the chair conformationd and explain which one is the most stable for both products. are ha and hb homo/enantio/diasterio/hetero topic? also hc and hd.Draw 2 of the chair conformations for the compounds shown below and then cricle which are most stableThe diaxial conformation of cis- 1,3-dimethylcyclohexane is approximately 23kl/mol (5.4 kcal/mol) less stable than the diequatorial conformation. Draw thetwo possible chair conformations, and suggest a reason for the large energydifference.
- Consider 1-bromo-2-methylpropane and draw the following. Q) The staggered conformation(s) of lowest energyWhy is this chair conformation the most stable trans-1-chloro-3-flurocyclohexane? Wouldn't the conformation with Cl & F in equatorial positions be the most stable conformation?Which of the following molecules are chiral?I. cis-1,3-DibromocyclohexaneII.1-Bromo-1-methylcyclohexaneIII.trans-1-Bromo-3-methylcyclohexaneIV.cis-1-Bromo-3-methylcyclohexane
