(b) In mass spectrometry, the molecular ions of carbonyl containing compounds
(15 Marks) may undergo a McLafferty rearrangement if their structure allows.
(i) Give the mechanism for the McLafferty rearrangement and in your answer highlight the structural features that are required in a carbonyl compound for this rearrangement to take place.
(ii) Using your answer to (i) above explain how one can distinguish between the structural isomers 2-pentanone and 3-pentanone using mass spectrometry only. Include the structures of all relevant ions in your answer.
draw structures to support answer.
your answer. mass spectrometry only. Include the structures of all relevant ions in between the structural isomers 2-pentanone and 3-pentanone using carbonyl compound for this rearrangement to take place. answer highlight the structural features that are required in a (15Marks)