The specific rotation [a] of pure quinine is -165º. A solution containing both quinine and its...
(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?...
The specific rotation of pure (-)-2-butanol is -13.5°. If a mixture has a specific rotation of +7o, how much of each form (+ and-) is present and what is the e.e. of the mixture? 21. 22. (-)-Lactic acid has a specific rotation of -3.8°. What is the specific rotation of a solution containing 7.5 g of (--lactic acid and 2.5 g of (+)-lactic acid? 23. Draw the Fischer projection of (2R,4R)-2,4-dibromopentane. w? And draw the 24. How many diastereomers are...
1) Suppose that a pure compound has a specific rotation of +49°. In the laboratory a solution in which the compound is mixed with its enantiomer is found to have a specific rotation of +12. What is the %ee of the mixture? What percent of the mixture is (+) enantiomer and what percent is (-) enantiomer? 2) Give the structure of 3,3-Dimethylpetane. How many monochlorinated product can be formed from this compound reacting with Cl? Give the structure of each...
the [] of pure quinine, an antimalarial drug, is -165. If a solution contains75% quinine and 25% of its enantiomer (ee= 50%), what is [] for the solution? [] = ?
68 The (a] of pure quinine, an antimalarial drug, is -165 a. Calculate the ee of a solution with the following (a] values: -50, -83, and -120. b. For each ee, calculate the percent of each enantionmer present. c. What is [a) for the enantiomer of quinine? но. d. If a solution contains 80 % quinine and 20 % of its enantiomer, what is the ee of H" the solution? CH30. e. What is [a)] for the solution described in...
Assume that optically pure (S)-2-iodononane has a specific rotation of + 9.5o (clockwise rotation of the plane-polarized light). Claculate the percentage of (S) enantiomer required when the specific rotation for a mixture of 2-iodononane enantiomers will be -2.1o (counterclockwise rotation of the plane-polarized light).
The [a] of pure quinine, an antimalarial drug, is -165. If a solution contains 72% quinine and 28% of its enantiomer (ee=44%), what is [a] for the solution?
The [α] of pure quinine, an antimalarial drug, is −165. If a solution contains 79% quinine and 21% of its enantiomer (ee = 58%), what is [α] for the solution?
The [α] of pure quinine, an antimalarial drug, is −165. If a solution contains 67% quinine and 33% of its enantiomer (ee = 34%), what is [α] for the solution?
If a pure R isomer has a specific rotation of – 106.0°, and a sample contains 79.0% of the R isomer and 21.0% of its enantiomer, what is the observed specific rotation of the mixture? Number [a] = 10