Allyl and vinyl are two different organic functional groups. Both have C-C double bonds but in different positions. In vinyl group, C=C is directly attached to the rest of the chain. In contrast to vinyl, allyl group is attached to the rest of the molecule through –CH2 group. This is the main difference between Allyl and Vinyl groups.

Allyl: The general molecular formula is RCH2CH=CH2. The Vinyl group is attached to rest of the molecule through –CH2– group.

Vinyl: The general molecular formula is RCH=CH2. The Vinyl group is directly attached to rest of the molecule.

Allyl: This contains sp3 hybridized allyl carbon atom, which is adjacent to sp2 hybridized carbon atom.

Vinyl: This contains sp2 hybridized carbon atoms.

Allyl: Allylic compounds are precursors to many natural products, including natural rubber and biosynthesis f terpenes.

Vinyl: Vinylic compounds can produce vinylic polymers such as PVC, PVF, PVAc, etc.

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