Methylenetriphenylphosphorane

Methylenetriphenylphosphorane
Names
	Preferred IUPAC name Methylidenetri(phenyl)phosphane
Identifiers
CAS Number	3487-44-3 ;
3D model (JSmol)	Interactive image;
ChemSpider	121606;
PubChem CID	137960;
UNII	8GN8K95F62 ;
CompTox Dashboard (EPA)	DTXSID20188410 ;
	InChI 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;
	SMILES C=P(C1=CC=CC=C1)(C2=CC=CC=C2)C3=CC=CC=C3;
Properties
Chemical formula	C19H17P
Appearance	yellow solid
Density	1.19 g/cm3
Solubility in water	decompose
Solubility	THF
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

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.