What Is A Vinylic Hydrogen

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.

What is a vinylic hydrogen.

Allylic carbon only forms a single bond. Vinyl indicates the ch ch 2 functional group which can be formed by removing hydrogen from ethylene molecule. It contains two sp 2 hybridized carbon atoms and three hydrogen atoms. The libretexts libraries are powered by mindtouch and are supported by the department of education open textbook pilot project the uc davis office of the provost the uc davis library the california state university affordable learning solutions program and merlot.

We also acknowledge previous national science foundation support under grant numbers 1246120 1525057 and 1413739. Benzylic position allylic position propargylic position aryl aryl hydrogen. Allyl form a stable carbocation because of the electron delocalization. An allylic hydrogen is a hydrogen atom that is bonded to an allylic carbon in.

Vinyl group has two carbon atoms and three hydrogen atoms. The removed hydrogen atom can be replaced by any group of molecules and it is denoted as r. Number of hydrogen atoms. Vinyl group vinylic hydrogen vinylic carbocation allylic position benzylic position propargylic position wikipedia entry return to glossary index.

Therefore the general molecular formula of vinyl compounds is r ch ch 2 where r is any other group of atoms. Therefore it is also known as an ethenyl group. It forms at least one double bond. The libretexts libraries are powered by mindtouch and are supported by the department of education open textbook pilot project the uc davis office of the provost the uc davis library the california state university affordable learning solutions program and merlot.

A hydrogen atom bonded to an sp 2 carbon of an alkene. Vinylic carbon can have either two double bonds in its sides or one double bond. Vinylic carbon can have only two carbon as the maximum number. The name is also used for any compound containing that group namely r ch ch 2 where r is any other group of atoms.

Vinylic c h bond is lower. These compounds are very reactive and readily polymerize to form. Vinylic carbocations are unstable as they lack p character. None of the other hydrogens are vinylic.

The vinylic hydrogens are shown in red. Allylic carbon can have a maximum of 3 hydrogen atoms. We also acknowledge previous national science foundation support under grant numbers 1246120 1525057 and 1413739. The structure of a vinyl group is equivalent to the molecular group when one hydrogen atom is removed from an ethene molecule.

Number of carbon hydrogen atoms.