aldehydes and ketones assignment

problem of oxymercurationdemercuration

Free radicals- Preparation from mercury hydrides

alkynes some reaction mechanisms

Alkynes- addition of hydrogen halides

Alkynes- hydration to ketones (Markovnikov)         Alkynes- isomerisation         Alkynes- reduction to E-alkene         Alkynes- reduction to Z alkene

alkene -reaction summary

Alkenes- addition of Br2

Alkenes- anti-dihydroxylation         Alkenes- CCl3 and NaOH with alkene (carbene formation).         Alkenes- Diels Alder- cycloaddition         Alkenes- Diols from OsO4 to aldehydes (IO4/H2O)

Alkenes- electrophilic addition of Br2 and H2O

Alkenes- electrophilic addition of H2O         Alkenes- electrophilic addition of HBr         Alkenes- electrophilic addition of HBr (Hydride Shift)         Alkenes- formation by dehydrogenation of alcohols         Alkenes- formation by elimination of charged leaving group (Hoffman product)         Alkenes- formation by elimination of HHal from RHal (E2)         Alkenes- free radical addition of HBr         Alkenes- hydroboration         Alkenes- organoboranes to alcohols         Alkenes- I2 AgOAc, AcOH (dry)- Prevost reaction.         Alkenes- I2 AgOAc, AcOH (wet)- Woodward reaction         Alkenes- oxymercuration to form alcohol         Alkenes- ozonolysis         Alkenes- Ozonolysis of cyclohexene (1,6 dialdehyde)         Alkenes- syn-dihydroxylation (OsO4)

Favorskii Rearrangement

α -Haloketones with base afford enolates which rearrange to give esters via cyclopropanones.

Mechanism

                          

The direction of ring opening of cyclopropanone is determined by the more stable carbanion, formed in the reaction.

Examples: