AQA Jun 2017 Paper 2 Q6

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120 6 Use the Data Booklet to help you answer this question. This question is about amino acids and peptide (amide) links. 0 6 . 1 Draw the structure of the zwitterion formed by phenylalanine. [1 mark] 0 6 . 2 Draw the structure of serine at high pH. [1 mark] 0 6 . 3 Draw the structures of both dipeptides formed when phenylalanine reacts with serine. In each structure show all the atoms and bonds in the amide link. [2 marks] *12* IB/M/Jun17/7405/2<br /> 130 6 . 4 An amide link is also formed when an acyl chloride reacts with a primary amine. Name and outline a mechanism for the reaction between CH3CH2COCl and CH3CH2NH2 Give the IUPAC name of the organic product. Name of mechanism Mechanism [6 marks] IUPAC name of organic product 10 *13* Turn overIB/M/Jun17/7405/2<br />

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