Ema. (a.) Draw the possible stored isomers of 2. 3 - dihydrobutanoic acid: identify the enantiomers and Jiastereomers th

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Ema A Draw The Possible Stored Isomers Of 2 3 Dihydrobutanoic Acid Identify The Enantiomers And Jiastereomers Th 1 (52.54 KiB) Viewed 10 times

Ema. (a.) Draw the possible stored isomers of 2. 3 - dihydrobutanoic acid: identify the enantiomers and Jiastereomers that might be present. 16 marks), "Ar- 1b.) What is racemization? Give an example of a drug that is marketed as a racemic mixture giving the therapeutic benefit of this. [4 marks) Dr.us 10.) Many substances ihat occur in plants and animals are found naturally as pure enantiomers and any total synthesis of such compounds must, therefore involve a method of resolving the synthetic racemic mixture into their optically active. Name four (4) methods that may be emploved in achieving this.. [4 marks) (d) A sample of 2-hromobutan has !!!". The spuitte rotaika vi i+)-2. bromebulanc at 21°C is +23.10. What is the enantiomeric excess of (+)-2-bromobutane in this sample? [2 marks] (c) Explain briefly how optical activity is measured using a polarimeter. 13 marks) ( Draw the Fischer projection of (S)-2-hydroxybulanore acid. CH:CH-CH(OH; COOH. (3.marks) (.) Draw the structure of the meso lom of 1.3-dichlorocyclopentane. Take particular care to indicate three-dimensional stereochemical detail properly. [3 marks)