(ii) Provide a mechanism for the reaction shown below which accounts for both of the products formed. (i) All of the compounds shown below can be reduced by reaction with sodium borohydride (NaBH4), followed by work up with dilute, aqueous hydrochloric acid (HCl) - Draw the mechanism for the reaction of compound 1 with NaBH4, followed by HCl. - For each structure, 1, 2 and 3, indicate how many stereoisomers are formed from the reduction with NaBH4. - Indicate how many of the stereoisomers are optically active, in each case. 1 2 3