6. Consider the following organic molecule. он a) Name the above molecule. (1 mark) b) Write the chemical equation when potassium hydride (KH) is added to the above molecule. Label the conjugate acid-base pairs. (2 marks)
c) It is suggested that an ether will be formed if the alkoxide ion (i.e. the product in (b)) is reacted with bromoethane (CH3CH2Br). Draw and name the structure of the ether. (2 marks) d) Suggest the type of organic reaction for (c). (1 mark) e) Given the structure of a D-mannose, a molecule which could generate to glycoproteins in metabolic transformations. HO ..OH Homme он OH D-mannose (i) Draw the most stable chair conformation for D-mannose. (2 marks) (ii) Based on the information suggested in (b) and (c), draw the structure (stable chair conformation) of the major product when D-mannose is treated with silver(I) oxide (Ag20) followed by benzyl bromide (C6H5CH Br). (2 marks) (iii) What is the role of silver(I) oxide in the reaction mentioned in (ii)? (1 mark)
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