5. (a) Draw the structure of (1 S,2S,5R)-5-ethyl-2-isobutylcyclohexanol. Use solid and dashed wedges to show the...
6. (a) Draw the structure of (18,25,5R)-5-ethyl-2-isobutylcyclohexanol. Use solid and dashed wedges to show the proper configurations of the chiral centers. (0.4 pts) (b) Draw both chair conformations for this structure. (0.4 pts) OG (c) Draw a box around the most stable chair conformation. (0.2 pts)
8. (a) Draw the structure of (4R,5R)-4-ethyl-5-fluoro-2-methyl heptane. Use solid and dashed wedges to show the proper configurations of the chiral centers. (0.4 pts) (b) Now draw a Newman projection for the most stable conformation of the C(4)-C(5) bond. (0.4 pts) H (c) Draw a diastereomer of (4R,5R)-4-ethyl-5-fluoro-2-methyl heptane (0.2 pts)
(a) Draw the structure of (4R,5R)-4-ethyl-5-luoro-2-methytheptane. Use solid and dashed wedges to show the proper configurations of the chiral centers. (0.4 pts) . (b) Now draw a Newman projection for the most stable conformation of the C(4)-C(5) bond. (0.4 pts) (c) Draw a diastereomer of (4R,5R)-4-ethyl-5-fluoro-2-methylheptane (0.2 pts) The specific rotation [a] of pure quinine is-165. A solution containing 9. both quinine and its enantiomer has a specific rotation of -63 Calculate the percentage of quinine present in the mixture?...
5. (a) Draw the structure of (15.25,5R)-5-ethyl-2-isobutylcyclohexanol. Use solid and dashed wedges to show the proper configurations of the chiral centers. (0.4 pts) (b) Draw both chair conformations for this structure (0.4 pts) (c) Draw a box around the most stable chair conformation (0.2 pts) 6. Compounds A, B, and C are stereoisomers of 1,3-dimethylcyclopentane. Characterize the following solutions as optically active or optically inactive: (1) an equal mixture of B and C and (2) an equal mixture of A...
Draw a planar structure for the following compound using dashed or solid wedges to show the stereochemistry of the substituent groups. To be graded properly, includethe hydrogen atoms on the chirality centers (asymmetric carbons).(1R,2S,3R)-2-chloro-1-ethyl-3-methylcyclohexane
3. Draw all possible stereoisomers of 2-bromo-3-methoxypentane. Use solid and dashed wedges, where appropriate. (2 pts) осна 2-bromo-3-methoxypentane 4. Provide (RS)-designations for the four starred (*) chiral (stereogenic) centers. (2 pts) H
please answer all questions. 3. Draw all possible stereoisomers of 2-isopropylcyclobutanamine. Use solid and dashed wedges, where appropriate. (2 pts) NH2 2-isopropylcyclobutanamine Provide (RS)-designations for the four starred (*) chiral (stereogenic) centers. (2 pts) 4. II . I I NT CH3
Draw one planar structure each for the following compounds using dashed or solid wedges to show the stereochemistry of the substituent groups. To be graded properly, include the hydrogen atoms on the chirality centers (asymmetric carbons). cis-1,3-dimethylcyclohexane trans-1,3-dimethylcyclohexane
Draw one planar structure each for the following compounds using dashed or solid wedges to show the stereochemistry of the substituent groups. To be graded properly, include the hydrogen atoms on the chi centers (asymmetric carbons) cis-1,3-dimethylcyclohexane trans-1,3-dimethylcyclohexane
4. a) Draw the perspective (dashes and wedges) structure of an androstane analog comprised of acarbonyl group at C-3, a carboxylic acid group at C-17 and a double bond between C-5 and C-6; whatkind of lipid is this? b) Draw the perspective structure of the products of its reaction with 1) bromine followed by 2) water;assign R and S to all chiral centers. (Also consider whether these reagents react with the carbonyl and and/or the carboxylic acid group/s; can an...