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Orgo Rxns & Reagents
Reagent | Reaction and What Happens |
---|---|
1) OsO4, THF 2) H2S or NaHSO3 or Na2SO3 (reducing agents) | Syn Dihydroxylation of alkenes (Both OH on wedges or both dashes) |
1) OsO4 2)THF | Syn Dihydroxylation of alkenes (Both OH on wedges or both dashes) |
1) BH3, THF 2) H20, OH- (NaOH, H2O) | Hydroboration Oxidation of alkenes (Syn Addition of H and OH); OH is Anti Markovnikov |
1) H2 2) Pd/C or Pt or Ni (Catalysts) | Catalytic Hydrogenation - double bond goes to single bond |
1) MCPBA 2) H+, H2O | Anti Addition of 2 OHs (one wedge, one dash) |
1) O3, DCM 2) Zn, CH3COOH | Ozonolysis of alkenes; yields 2 ketones (could be tautomerized to enols) |
1) HCl, HBr, HI | Hydrohalogenation (Markovnikov addition of X). Entropy increases; Enthalpy is exothermic |
1) HCl, HBr, HI 2) ROOR | Hydrohalogenation, but anti markovnikov addition because of peroxide |
1) H3O+ (acid + H2O) | Acid-catalyzed hydration (Adding H2O but it gets protonated), so Markovnikov addition of OH . Conc. Acid = Alkene Product; Dilute Acid (more water) = alcohol product |
1) Hg(OAc)2 2) H2O | Alkene Oxymercuration. Markovnikov OH and Anti Mark HgOAc |
1) Hg(OAc)2, EtOH 2) NaBH4 | Alkene Demercuration. Markovnikov addition of OCH3 |
1) HgSO4, H20 2) HgSO4 | Alkyne acid-catalyzed hydration; forms enol that could become ketone |
1) R2BH/BH3, ThF 2 H2O2, NaOH,H20 | hydroboration oxidation of alkynes; aldehyde formed |