Vinyl group

In organic chemistry, a vinyl group (abbr. Vi;^[1] IUPAC name: ethenyl group^[2]) is a functional group with the formula −CH=CH₂. It is the ethylene (IUPAC name: ethene) molecule (H₂C=CH₂) with one fewer hydrogen atom. The name is also used for any compound containing that group, namely R−CH=CH₂ where R is any other group of atoms.

An industrially important example is vinyl chloride, precursor to PVC,^[3] a plastic commonly known as vinyl.

Vinyl is one of the alkenyl functional groups. On a carbon skeleton, sp²-hybridized carbons or positions are often called vinylic. Allyls, acrylates and styrenics contain vinyl groups. (A styrenic crosslinker with two vinyl groups is called divinyl benzene.)

^ Rules for abbreviation of protecting groups p.310
^ IUPAC Provisional Recommendations 2004 Chapter 5
^ Endo, Kiyoshi (December 2002). "Synthesis and structure of poly(vinyl chloride)". Progress in Polymer Science. 27 (10): 2021–2054. doi:10.1016/S0079-6700(02)00066-7.

[1] Rules for abbreviation of protecting groups p.310

[2] IUPAC Provisional Recommendations 2004 Chapter 5

[Endo-2002-3] Endo, Kiyoshi (December 2002). "Synthesis and structure of poly(vinyl chloride)". Progress in Polymer Science. 27 (10): 2021–2054. doi:10.1016/S0079-6700(02)00066-7.

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