Methylenetriphenylphosphorane

Methylenetriphenylphosphorane
Names
Preferred IUPAC name
Methylidenetri(phenyl)phosphane
Identifiers
3D model (JSmol)
ChemSpider
UNII
  • InChI=1S/C19H17P/c1-20(17-11-5-2-6-12-17,18-13-7-3-8-14-18)19-15-9-4-10-16-19/h2-16H,1H2
    Key: XYDYWTJEGDZLTH-UHFFFAOYSA-N
  • InChI=1/C19H17P/c1-20(17-11-5-2-6-12-17,18-13-7-3-8-14-18)19-15-9-4-10-16-19/h2-16H,1H2
    Key: XYDYWTJEGDZLTH-UHFFFAOYAU
  • C=P(C1=CC=CC=C1)(C2=CC=CC=C2)C3=CC=CC=C3
Properties
C19H17P
Appearance yellow solid
Density 1.19 g/cm3
decompose
Solubility THF
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Methylenetriphenylphosphorane is an organophosphorus compound with the formula Ph3PCH2. It is the parent member of the phosphorus ylides, popularly known as Wittig reagents. It is a highly polar, highly basic species.