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Triphenylcarbethoxymethylenephosphorane is an organophosphorus compound with the
chemical formula In chemistry, a chemical formula is a way of presenting information about the chemical proportions of atoms that constitute a particular chemical compound or molecule, using chemical element symbols, numbers, and sometimes also other symbol ...
Ph3PCHCO2Et (Ph =
phenyl In organic chemistry, the phenyl group, or phenyl ring, is a cyclic group of atoms with the formula C6 H5, and is often represented by the symbol Ph. Phenyl group is closely related to benzene and can be viewed as a benzene ring, minus a hydrogen ...
, Et = ethyl). It is a white solid that is soluble in organic solvents. The compound is a Wittig reagent. It is used to replace oxygen centres in ketones and aldehydes with CHCO2Et.


References

{{reflist Organophosphorus compounds