Question

25T 8. Answer the following problems with explanation. The specific rotation [a]D of natural epinephrine (adrenaline) in water is-50°. Assume that all measurements are made in 10 cm polarimeter sample containers at 25 C. (a) To determine the optical purity ofa synthetic epinephrine, you prepare a 10 mL water solution containing 1.0 g of the synthetic product, measure the optical rotation, and get a reading of-2.5° What is the optical purity of the synthetic adrenaline? (c) What are the percentages of the major and the minor enantiomers in the synthetic epinephrine?

Answer 1

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