Methoxymethylenetriphenylphosphorane information

Methoxymethylenetriphenylphosphorane
Names
	IUPAC name Methoxymethylidene(triphenyl)-λ5-phosphane
Identifiers
CAS Number	20763-19-3;
3D model (JSmol)	Interactive image;
PubChem CID	11748776;
CompTox Dashboard (EPA)	DTXSID901282268 ;
	InChI InChI=1S/C20H19OP/c1-21-17-22(18-11-5-2-6-12-18,19-13-7-3-8-14-19)20-15-9-4-10-16-20/h2-17H,1H3 Key: DYROHZMICXBUMX-UHFFFAOYSA-N;
	SMILES COC=P(C1=CC=CC=C1)(C2=CC=CC=C2)C3=CC=CC=C3;
Properties
Chemical formula	C20H19OP
Molar mass	306.345 g·mol−1
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Methoxymethylenetriphenylphosphorane is a Wittig reagent used for the homologization of aldehydes, and ketones to extended aldehydes, a organic reaction first reported in 1958.^[1] The reagent is generally prepared and used in situ. It has blood-red color, indicative of destabilized ylides.

Methoxymethylenetriphenylphosphorane information

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Methoxymethylenetriphenylphosphorane

Wittig reagents