3. Draw the starting materials, reagents or major products for the following reactions. Be sure to include stereochemistry where relevant. a. ن Br OH + H OH b. d. Mg, Et₂O (solvent) Θ : CH₂NEN: H A or hu H2 CH3CH2OH H (solvent) H Pd/BaSO4 Pb, (Lindlar catalyst) :N=N: +

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