2. Answer ALL parts. In which of the compounds 1-3 shown below does an amine inversion readily take place? Explain how you reached your answer and include a graph illustrating the nitrogen inversion process. HOG Ph -CH ha HC-N N Et IN-CH 2 3 [8 marks) (b) Assign the configuration of the allene compound show below. Ensure that you explain how you reached your answer. LOH Joan (c) [8 marks) Draw the two possible chair conformations for the tri-substituted eyelohexane shown below. State which of the conformations is more stable and explain your reasoning & 18 marks)