Karl Ziegler reported that alkenes react with N-bromosuccinimide (NBS) in presence of light to give products resulting from substitution of hydrogen by bromine at the allylic position i.e., the position next to the double bond.
Let us consider the halogenation of cyclohexane.

Energy level diagram for allylic vinylic and alkylic free redicals is given below:

Consider the three types of C-H bonds in cyclohexene.

Which of the following `is // are `correctly matched?

Karl Ziegler reported that alkenes react with N-bromosuccinimide (NBS) in presence of light to give products resulting from substitution of hydrogen by bromine at the allylic position i.e., the position next to the double bond. Let us consider the halogenation of cyclohexane. Energy level diagram for allylic vinylic and alkylic free redicals is given below: Select the correct statement(s) among the following :

Karl Ziegler reported that alkenes react with N-bromosuccinimide (NBS) in presence of light to give products resulting from substitution of hydrogen by bromine at the allylic position i.e., the position next to the double bond. Let us consider the halogenation of cyclohexane. Energy level diagram for allylic vinylic and alkylic free redicals is given below: (4,4-Dimethyl cyclohexene) Above compound on treatment with NBS gives allylic bromides . How many product (s) will be obtained in this reaction?

Allylic Substitution

Allylic Substitution

Which reaction is helpful in locating the position of double bond in alkenes ?

The position of the double bond in an alkene can be determined by -

Which of the following give allylic substitution product?

Which of the following give allylic substitution product?