Concept explainers
(a)
Interpretation:
The plausible mechanism for the formation of the product B has to be proposed.
Concept introduction:
There are mainly three types of pericyclic reactions,
- 1) Electrocyclic reactions
- 2) Cycloaddition reactions
- 3) Sigmatropic reactions
In a cycloaddition reaction “ two new sigma-bonds are formed or brocken”
Click reaction:
Azide reaction with
(b)
Interpretation:
The structure of compound C has to be drawn.
Concept introduction:
There are mainly three types of pericyclic reactions,
- 1) Electrocyclic reactions
- 2) Cycloaddition reactions
- 3) Sigmatropic reactions
In a cycloaddition reaction “ two new sigma-bonds are formed or brocken”
Click reaction:
Azide reaction with alkyne in the presence of
(c)
Interpretation:
The reason for decrease in rate if the alkyne A is replaced by alkynes from D-F has to be determined.
Concept introduction:
Angle strain: The strain experienced because of existence of the non-bonded interactions of the atoms which are placed spatially close to each other is called the angle strain.
The angle strain will be very much low for
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