Plausible mechanism for the formation of the observed region- chemical reaction has to be proposed. Concept introduction: Radical or free radical: unpaired valence electron of an atom, molecule, or ion is called as radical. Stability of Radicals: Radicals are highly unstable due to its unpaired valence electron of an atom. The increasing order of radical stability is given below Benzylic > allylic > tertiary > secondary > primary > methyl Bond strength is depends on the formation of the radical, if the radical is involving in resonance which weakest bond strength.

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Chapter 10, Problem 61CP

(a)

Interpretation Introduction

Interpretation:

Plausible mechanism for the formation of the observed region-chemical reaction has to be proposed.

Concept introduction:

Radical or free radical: unpaired valence electron of an atom, molecule, or ion is called as radical.

Stability of Radicals: Radicals are highly unstable due to its unpaired valence electron of an atom.

The increasing order of radical stability is given below

Benzylic > allylic > tertiary > secondary > primary > methyl

Bond strength is depends on the formation of the radical, if the radical is involving in resonance which weakest bond strength.

(b)

Interpretation Introduction

Interpretation:

Plausible mechanism for the formation of the given ring-closure reaction has to be proposed.

Concept introduction:

Radical or free radical: unpaired valence electron of an atom, molecule, or ion is called as radical.

Stability of Radicals: Radicals are highly unstable due to its unpaired valence electron of an atom.

The increasing order of radical stability is given below

Benzylic > allylic > tertiary > secondary > primary > methyl

Bond strength is depends on the formation of the radical, if the radical is involving in resonance which weakest bond strength.

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