[SOLVED] CHE201 Assignment 2

CHE201: Assignment 2

Question 1 (15 marks)

Draw the products formed from the following acid base pairs and use approximate pKa values to predict in which direction the equilibrium will lie. (3 marks for each reaction, 2 for the products, 1 for the equilibrium’s position)

Question 2 [15 marks]:

Draw the mechanism and the products A and B of the following reactions. (7.5 marks for each reaction, 2.5 for the product, 5 for the mechanism)

Question 3 [15 marks]:

Using benzaldehyde (PhCHO) as your starting material provide the reagents required to synthesize the following compounds A, B, and C. More than one step maybe necessary. No mechanisms required (5 marks each)

Question 4 [15 marks]:

Provide the mechanism for the following reaction (10 marks). Which base would be suitable for this reaction? Justify your answer (5 marks)

Question 5 [15 marks]:

Draw the mechanism to explain the regioselectivity of the following reaction: (7.5 marks for the mechanism, 7.5 for the explanation)

Question 6 [25 marks]:

Provide the missing reagents that lead to the formation of product A (5 marks) and explain why you used these reagents (5 marks). Using A as a starting material provide the structures of products B and C (5 marks each) and draw the mechanism that leads to the formation of product D. (5 marks)