What Is A Vinylic Hydrogen

Therefore the general molecular formula of vinyl compounds is r ch ch 2 where r is any other group of atoms.

What is a vinylic hydrogen.

The vinylic hydrogens are shown in red. Vinyl group vinylic hydrogen vinylic carbocation allylic position benzylic position propargylic position wikipedia entry return to glossary index. It contains two sp 2 hybridized carbon atoms and three hydrogen atoms. The structure of a vinyl group is equivalent to the molecular group when one hydrogen atom is removed from an ethene molecule.

Therefore it is also known as an ethenyl group. Vinylic carbon can have either two double bonds in its sides or one double bond. Allylic carbon only forms a single bond. 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.

We also acknowledge previous national science foundation support under grant numbers 1246120 1525057 and 1413739. The removed hydrogen atom can be replaced by any group of molecules and it is denoted as r. Vinylic carbocations are unstable as they lack p character. An allylic hydrogen is a hydrogen atom that is bonded to an allylic carbon in.

Benzylic position allylic position propargylic position aryl aryl hydrogen. Allyl group holds three carbon atoms and five 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. It forms at least one double bond.

Allyl form a stable carbocation because of the electron delocalization. Vinyl group has two carbon atoms and three 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. None of the other hydrogens are vinylic.

Number of 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. These compounds are very reactive and readily polymerize to form. An industrially important example is vinyl chloride precursor to pvc a plastic.

Allylic carbon can have a maximum of 3 hydrogen atoms. Vinylic carbon can have only two carbon as the maximum number. We also acknowledge previous national science foundation support under grant numbers 1246120 1525057 and 1413739. Vinylic groups have sp 2 hybridized carbon atoms.

A hydrogen atom bonded to an sp 2 carbon of an alkene.