Allylic Vs Benzylic Or Vinylic. Key difference allylic vs vinylic carbons functional groups are very important in understanding the different physical and chemical properties of organic molecules the terms allylic and vinyl carbons indicate whether the carbon atom is bonded directly or indirectly to a double bond in a molecule. The key difference between allylic and vinylic carbon is that allylic carbon is the carbon. None of the other hydrogens are vinylic.
In high dielectric ionizing solvents such as water dimethyl sulfoxide acetonitrile s n 1 and e1 products may be observed. For 3º halides a very slow s n 2 substitution or if the nucleophile is moderately basic e2 elimination.
In high dielectric ionizing solvents such as water dimethyl sulfoxide acetonitrile s n 1 and e1 products may be observed.
Vinyl group has two carbon atoms and three hydrogen atoms. The vinylic hydrogens are shown in red. Allyl h 2 c chch 2 rapid s n 2 substitution for 1º and 2º halides. Allyl form a stable carbocation because of the electron delocalization.