Why do primary alcohols undergo sn2 reactions?
Then, why are primary alcohols more reactive?
so the reactivity is heigher than primary or secondary alcohol. Tertiary alcohols are more reactive because the increased number of alkyl groups increases +I effect. So, the charge density on carbon atom increases and hence around oxygen atom. Hence, the cleavage of C−O bond becomes easier.
Also, why is ethanol not used in sn2 reactions? Polar protic solvents hinder SN2 reactions, as they can hydrogen bond to nucleophiles and make them less effective in attacking the substrate. Ethanol is a polar protic solvent (though alcohols are only weakly acidic). It is commonly seen as a solvent/nucleophile (solvolysis) in SN1 reactions.
Also question is, why do primary alkyl halides undergo sn2?
In SN2 reaction, attack of nucleophile takes place from backward direction. Therefore, steric hindrance is one of the major factor in SN2. Since primary alkyl halide is the least sterically hindered among primary,secondary and tertiary alkyl halides. Therefore, Primary alkyl halides undergo SN2 mechanism.
What reactions can an alcohol undergo?
The most common reactions of alcohols can be classified as oxidation, dehydration, substitution, esterification, and reactions of alkoxides.