Oxidation reaction of alcohols 1 degree alcohols with PCC =====> aldehydes 1 degree alcohols with CrO3 (H2SO4/H2O) =====> carboxylic acids 2 degree alcohols with PCC or CrO3 =====> ketones Oxidation reactions of aldehydes with CrO3 Na2Cr2O7 K2Cr2O7 KMnO4 =====>carboxylic acids with Ag2O NH4OH =====> carboxylic acids ---------------------------- Reduction reactions Aldehydes and ketones NaBH4/CH3OH(less strong) or LiAlH4->H2O or H2/Pd/C =====> alcohols αβunsaturated aldehydes and ketones 1. with NaBH4/CH3OH =====> only C=O bond is reduced 2. with H2(1 equiv)/Pd/C =====> only C=C bond is reduced 3. with H2(excess)/Pd/C =====> both double bonds are reduced Acid Chlorides 1.with LiAlH4->H2O(strong reductant) =====> 1 degree alcohols 2.with LiAlH[OC(CH3)3]3(weak reductant) =====> aldehydes(no reactions with C=O) Esters 1.with LiAlH4->H2O =====> 1 degree alcohols 2.with DIBAL-H->H2O(weak reductant) =====> aldehydes(reaction stopped at this stage) Carboxylic acids with LiAlH4->H2O =====> alcohols Amides with LiAlH4->H2O =====> amines --

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