3) Complete the following: Stereochemistry and regiochemistry may be important. a) b) c) d) e) type type type type type OSO4 THE Hydroboration - Oxidation Br₂ H₂O/THF Oxymercuration - Reduction KOtBu, CHBr3 tBuOH f) g) h) i) j) type type type type D₂, Pd/C EtOH HCI, ether type_ Ozonolysis (Ozonization) OMe CHO

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The product of the following reaction is a mixture of 90% S enantiomer and 10% R enantiomer. Calculate the enantiomrric excess (ee) of the S enantiomer. And plesse explain how to solve! J C H3C H H3C H CO₂H CO, O2, CuCl2 chiral catalyst R enantiomer S enantiomer

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Check the box under each L-ketose. If there are none, check the None of the above box under the table. H H H OH Н OH CH₂OH П U Н. H НО- H H -OH H OH -OH CH₂OH НО H CH₂OH c=0 OH CH₂OH U H H H НО 애애애 H CH₂OH U НО НО CH₂OH c=0 H -Н CH₂OH

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Draw the pyranose Hawthorne projection from the Fischer projection show below.