Vladimir Markovnikov rule: Alkenes undergo electrophilic addition reactions. It is triggered by the acid acting as a electrophile toward `pi`-electrons of the double bond. Markovnikov's rule states that when an unsymmetrically substituted alkene reacts with a hydrogen halide, the hydrogen atom adds to the carbon that has the greater number of hydrogen, e.g., What is the energy profile for the given reaction?
A
B
C
D
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The correct Answer is:
c
c exothermic (1`pi`-bond breaks and `2sigma`-bonds are formed)
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Vladimir Markovnikov rule: Alkenes undergo electrophilic addition reactions. It is triggered by the acid acting as a electrophile toward pi -electrons of the double bond. Markovnikov's rule states that when an unsymmetrically substituted alkene reacts with a hydrogen halide, the hydrogen atom adds to the carbon that has the greater number of hydrogen, e.g., Which of the following is most reactive toward Markovnikov addition?
Vladimir Markovnikov rule: Alkenes undergo electrophilic addition reactions. It is triggered by the acid acting as a electrophile toward pi -electrons of the double bond. Markovnikov's rule states that when an unsymmetrically substituted alkene reacts with a hydrogen halide, the hydrogen atom adds to the carbon that has the greater number of hydrogen, e.g., In which of following reactions, carbocation rearrangement is possible?
The alkenes have pi -bonds which make them highly reactive. These undergo electrophilic addition reactions, Addition of HX to unsymmetrical alkenes gives two products and follow Markovnikov rule and anti- Markovnikov rule. The addition occure through the formation of carbocation in Markovnikov rule and free radicals in anti-Markovnikov zule. The ozonolysis reaction of alkenes helps to locate the position of double bond. Write the major product in the following reaction: CH_(3)- overset(CH_(3))overset(|)CH-CH=CH_(2) overset(HBr)to
The alkenes have pi -bonds which make them highly reactive. These undergo electrophilic addition reactions, Addition of HX to unsymmetrical alkenes gives two products and follow Markovnikov rule and anti- Markovnikov rule. The addition occure through the formation of carbocation in Markovnikov rule and free radicals in anti-Markovnikov zule. The ozonolysis reaction of alkenes helps to locate the position of double bond. What product is obtained when propene reacts with CI_(2) in the presence of water?
The alkenes have pi -bonds which make them highly reactive. These undergo electrophilic addition reactions, Addition of HX to unsymmetrical alkenes gives two products and follow Markovnikov rule and anti- Markovnikov rule. The addition occure through the formation of carbocation in Markovnikov rule and free radicals in anti-Markovnikov zule. The ozonolysis reaction of alkenes helps to locate the position of double bond. Predict the major product in the following reaction: CH_(3)-CH=CH_(2) underset((PhCOO)_(2))overset(HBr)to
Alkene and alkyne both undergo electrophilic additon beacuise of pi electron density, they behave as elctron rich species, alknens are more reactive toward this reaction because the intermiediate formed when an E^(oplus) adds to an alkyne is a vinylic cation wheras sthe intermediate formed when an E^(oplus) adds to akene is alkyl cation, which is mopre stable. In the reaction:
Alkene and alkyne both undergo electrophilic additon beacuise of pi electron density, they behave as elctron rich species, alknens are more reactive toward this reaction because the intermiediate formed when an E^(oplus) adds to an alkyne is a vinylic cation wheras sthe intermediate formed when an E^(oplus) adds to akene is alkyl cation, which is mopre stable.
exothermic (1`pi`-bond breaks and `2sigma`-bonds are formed)
