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 c h bond is lower. We also acknowledge previous national science foundation support under grant numbers 1246120 1525057 and 1413739. These compounds are very reactive and readily polymerize to form. 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. Allylic carbon can have a maximum of 3 hydrogen atoms. The removed hydrogen atom can be replaced by any group of molecules and it is denoted as r. Number of carbon hydrogen atoms.
A hydrogen atom bonded to an sp 2 carbon of an alkene. 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. An industrially important example is vinyl chloride precursor to pvc a plastic. Vinylic carbon can have either two double bonds in its sides or one double bond.
It forms at least one double bond. Vinylic groups have sp 2 hybridized carbon 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. 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. Allylic carbon only forms a single bond. The vinylic hydrogens are shown in red. Therefore it is also known as an ethenyl group.
Vinyl indicates the ch ch 2 functional group which can be formed by removing hydrogen from ethylene molecule. Allyl group holds three carbon atoms and five hydrogen atoms. 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 structure of a vinyl group is equivalent to the molecular group when one hydrogen atom is removed from an ethene molecule. 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.