Vinyl group

For the music technology company, see Vinyl Group. For the carbocation, see Vinyl cation. For other uses, see Vinyl.
Chemical structure of the vinyl functional 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.

Chessboard made from polyvinyl chloride

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.)

  1. ^ Rules for abbreviation of protecting groups p.310
  2. ^ IUPAC Provisional Recommendations 2004 Chapter 5
  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.