mechanisms

alkene→ alcohol

oxymercuration hg(OAC)2H2O

reduction with NaBH4

alkene→ organobornae

• symmetrical ( BR2 are on same face )

• unsymmetrical ( BR on less substituted C )

oxidation of organoborane

oregano borane → diol

h202 and NaOH

retains stereochem

addition to bromine water

alkene- alkane( hydroxy bromo)

symmetric - inverted stereochem of Br and OH

unsymmetrical - trans ( Br on less substitution C )

alkene to DIOL

• dihydroxylation

• NMO OSO4 H20 tbuo

alkene to epoxide

mCPBA ( cis diol )

expoxide → trans diol

water and h+ ( opens epoxide )

oh are on diff planes

alkene → carbonyl

O3 CH2CH2CL and reducing agent PPH3

reduction with h2 from alkene to alkane

h2 and lindlars pd-c ( H added to same face )

cyclone alkane → CA

O3 CH2CH2Cl

Oxidising agent: H2O2

das alder

alkyne → methyl ketone

hg(OA)2 , h20, h2so4

alkyne to ketone

1) HBR2

2) h202 and naoh

B IS on less subsistuted C

deportation of alkyne

NaNh2, Nah , BuLi, Memgbr

alcohol → aldehyde/ ketone

SWERN

TPAP- NMO

eater to aldehyde/ ketone

DIBAL-H

alcohol→ CA

pinnick

expoxide to diol

h3O +

alkyl halide to sodium azide

NAn3

alkene to diol

Oso4 , nmo, h20

ketone to alcohol

nabh4 / lialh4