(ii) When the product of the reaction of enantiomerically pure (S)-2-octyl tosylate (1) with \( \mathrm{Na}_{2}\left[\mathrm{Fe}(\mathrm{CO})_{4}\right] \) is treated first with carbon monoxide (CO) and then with methyl iodide (MeI), the organic product is (R)-3-methyl-2-nonanone (2) in a \( 99 \% \) enantiomeric excess. (1) (2) (a) Draw structures of the organometallic intermediates along the reaction pathway. [2 marks] (b) Label the reaction type of each individual reaction step and show the oxidation state, \( \mathrm{d}^{\mathrm{n}} \) electron count and whether the 18 electron rule is being obeyed for any metal compounds. [2 marks] (c) What is the mechanistic implication of this overall transformation for the first step of the reaction sequence? [1 mark]
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