Alkyl Aryl Vinyl

The key difference between these two structural components is the number of carbon and hydrogen atoms.

Alkyl aryl vinyl.

The allylic carbon atom is more reactive than normal. Allyl groups have three carbon atoms and five hydrogen atoms. An aryl halide has general formula c 6h 5x in which an halide group x has substituted the aryl ring. The vinyl compounds are every reactive and they polymerize to form the vinyl polymers as in the case of polyvinyl acetate polyvinyl chloride and polyvinyl fluoride.

Vinyl contains two sp 2 hybridized carbon atoms and three hydrogen atoms. A vinyl halide is clearly a species with a formula h 2c c x h in which a halide is directly bound to an olefinic bond formally this is ethylene h 2c ch 2 with one of the hydrogens substituted by a heteroatom vinyl chloride h 2c chcl is an example. Both groups own a double bond between two carbon atoms where all the other atoms are bonded through single bonds. Enamides and enol ethers are valuable building blocks in synthetic chemistry yet their stereoselective synthesis can be challenging.

The most basic aryl group is phenyl which is made up of a benzene ring with one hydrogen atom substituted for some substituent and has the molecular formula c 6 h 5. Note that phenyl groups are not the same as benzyl groups which consists of a phenyl group attached to a methyl group and has the molecular formula c 6 h 5 ch 2. Vinylic carbocations are unstable as compare to the allyl carbocations as they lack p character.