Following factors are responsible for the low reactivity of aryl halides towards nucl.
Why allyl halides are more reactive than vinyl halides.
The sp2 hybridised carbon atom with greater s character is more electronegative.
Halogen containing organic compounds are relatively rare in terrestrial plants and animals.
The resonating structures have negative charge on terminal carbon which is very unstable and hence the allyl halides are highly reactive.
In alkyl halides carbon atom of c x bond is sp3 hybridised while in aryl halides the carbon atom attached to halogen is sp2 hybridised.
Halo alkane and haloarene organic chemistry class 12 compounds.
Answer here is the answer to the question vinyl halides are less reactive than alkyl halides.
This is because c x bond in vinyl halides have partial double bond character due to resonance.
Pankaj singh chemistry expert explains why aryl halides are less reactive than alkyl halides for nucleophilic substitution.
Whereas alkyl halides undergo nucleophilic substitution easily.
In allyl halides the double bond is in conjugation with lone pair on halides.
Vinyl halides are less reactive than alkyl halides.
The thyroid hormones t 3 and t 4 are exceptions.
Aryl halides are less reactive towards nucleophilic substitution reaction due to several reasons.