Vinylic Vs Allylic Hydrogen

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.

Vinylic vs allylic hydrogen.

A hydrogen atom bonded to an sp 2 carbon of an alkene. Benzylic position allylic position propargylic position aryl aryl hydrogen. The key difference between these two structural components is the number of carbon and hydrogen atoms. The general formula for allyl is r ch 2 ch ch 2 in which the asterisk carbon atom is an allylic carbon atom.

The allylic position is also like a vinylic position. Allyl group holds three carbon atoms and five hydrogen atoms on the other hand vinyl group has two carbon atoms and three hydrogen atoms. In chemistry vinyl or ethenyl abbreviated as vi is the functional group with the formula c h ch 2 it is the ethylene iupac ethene molecule h 2 c ch 2 with one fewer hydrogen atom. An allylic hydrogen is a hydrogen atom that is bonded to an allylic carbon in an organic molecule.

Allyl form a stable carbocation because of the electron delocalization whereas vinylic carbocations are unstable as they lack p character. Identify the number of allylic and vinylic hydrogens in the pictured molecules. An industrially important example is vinyl chloride precursor to pvc a plastic. The allylic carbon atom is more reactive than normal.

Allyl groups have three carbon atoms and five hydrogen atoms. The vinylic hydrogens are shown in red. None of the other hydrogens are vinylic. The allylic carbon is bonded to a carbon atom which is doubly bonded to another carbon atom.

It provides plenty of examples including allylic and vinyli. Both groups own a double bond between two carbon atoms where all the other atoms are bonded through single bonds. The name is also used for any compound containing that group namely r ch ch 2 where r is any other group of atoms. This organic chemistry video tutorial explains how to determine which carbocation is most stable.