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.

Allylic carbon only forms a single 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. Therefore it is also known as an ethenyl group. It contains two sp 2 hybridized carbon atoms and three hydrogen atoms.

Vinylic carbon can have only two carbon as the maximum number. Allyl group holds three carbon atoms and five hydrogen atoms. Therefore the general molecular formula of vinyl compounds is r ch ch 2 where r is any other group of atoms. Vinylic carbocations are unstable as they lack p character.

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. Vinylic c h bond is lower. Benzylic position allylic position propargylic position aryl aryl hydrogen. Number of carbon hydrogen atoms.

Vinylic groups have sp 2 hybridized carbon atoms. A hydrogen atom bonded to an sp 2 carbon of an alkene. 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. These compounds are very reactive and readily polymerize to form.

Allyl form a stable carbocation because of the electron delocalization. None of the other hydrogens are vinylic. The structure of a vinyl group is equivalent to the molecular group when one hydrogen atom is removed from an ethene molecule. The vinylic hydrogens are shown in red.

Vinyl group has two carbon atoms and three hydrogen atoms. Vinyl indicates the ch ch 2 functional group which can be formed by removing hydrogen from ethylene molecule. Allylic carbon can have a maximum of 3 hydrogen atoms. Vinylic carbon can have either two double bonds in its sides or one double bond.

An allylic hydrogen is a hydrogen atom that is bonded to an allylic carbon in. 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. Number of hydrogen atoms.

We also acknowledge previous national science foundation support under grant numbers 1246120 1525057 and 1413739.