What Is A Vinylic Hydrogen

Vinyl group vinylic hydrogen vinylic carbocation allylic position benzylic position propargylic position wikipedia entry return to glossary index.

What is a vinylic hydrogen.

Vinylic carbocations are unstable as they lack p character. A hydrogen atom bonded to an sp 2 carbon of an alkene. Therefore it is also known as an ethenyl group. Allyl form a stable carbocation because of the electron delocalization.

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. Therefore the general molecular formula of vinyl compounds is r ch ch 2 where r is any other group of atoms. Vinylic carbon can have only two carbon as the maximum number. An industrially important example is vinyl chloride precursor to pvc a plastic.

Vinylic groups have sp 2 hybridized carbon atoms. Allylic carbon only forms a single bond. Vinylic c h bond is lower. Allylic carbon can have a maximum of 3 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. Benzylic position allylic position propargylic position aryl aryl hydrogen. The vinylic hydrogens are shown in red. Allyl group holds three carbon atoms and five hydrogen atoms.

Number of carbon hydrogen atoms. The name is also used for any compound containing that group namely r ch ch 2 where r is any other group of atoms. The structure of a vinyl group is equivalent to the molecular group when one hydrogen atom is removed from an ethene molecule. 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. We also acknowledge previous national science foundation support under grant numbers 1246120 1525057 and 1413739. Number of hydrogen atoms. Vinylic carbon can have either two double bonds in its sides or one double bond.

Vinyl indicates the ch ch 2 functional group which can be formed by removing hydrogen from ethylene molecule. None of the other hydrogens are vinylic. We also acknowledge previous national science foundation support under grant numbers 1246120 1525057 and 1413739. 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.

It forms at least one double bond.