(b) Answer BOTH parts (i) and (ii). (i) Suggest a structure for A and provide a...

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(b) Answer BOTH parts (i) and (ii). (i) Suggest a structure for A and provide a mechanism for its formation. i). NaOEt/EtOH ii). CH3-1 A 6H8O2 NaOD/DO (ii) Suggest a structure for B and account for the loss in optical activity during the course of this reaction. B m/z 177.1233 (5 marks) [a]=+108 [a]B = 0 (2C = 12.0000; H = 1.0078; 2H = 2.0141; 60 = 15.9949) (5 marks) (b) Answer BOTH parts (i) and (ii). (i) Suggest a structure for A and provide a mechanism for its formation. i). NaOEt/EtOH ii). CH3-1 A 6H8O2 NaOD/DO (ii) Suggest a structure for B and account for the loss in optical activity during the course of this reaction. B m/z 177.1233 (5 marks) [a]=+108 [a]B = 0 (2C = 12.0000; H = 1.0078; 2H = 2.0141; 60 = 15.9949) (5 marks)