Identify whether each of these will undergo E1 or E2 when reacted with H2SO4. Then identify the major product of each reaction. A) 1-bromobutane B) 2-bromobutane C) 1-butanol D) 2-butanol
Identify whether each of these will undergo E1 or E2 when reacted with H2SO4. Then identify the major product of each reaction.
A) 1-bromobutane
B) 2-bromobutane
C) 1-butanol
D) 2-butanol
E1 reactions or also known as a unimolecular elimination reaction:
These are the reactions that involve the removal of HX substituents and results in the introduction of double bonds in the product.
This reaction is similar to that of unimolecular nucleophilic substitution reaction. i.e. there is the formation of carbocation intermediate and the rate-determining step is the dissociation of leaving group to form a carbocation.
E2 reactions also known as bimolecular elimination reactions:
These reactions are observed in secondary and tertiary halides and for primary halide, hindered base is required. The mechanism this reaction occurs is single step concerted reaction.
This reaction follows the second-order kinetics hence rate depends on both the base and alkyl halide.
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