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47.1.1.1.1.1 Method 1: Synthesis from Aldehydes and Methylenetriphenylphosphorane

DOI: 10.1055/sos-SD-047-00004

Schobert, R.; Hölzel, C.; Barnickel, B.Science of Synthesis, (20104710.

Two variants of Wittig alkenations are possible for the synthesis of alkenes bearing linear, monocyclic, or oligocyclic alkyl residues: (a) the reaction of the respective aldehydes with methylenetriphenylphosphorane (1) and (b) the reaction of an appropriate alkylidenephosphorane with formaldehyde applied as a gas, a solid oligomer, a polymer, or an aqueous solution of the monomer.

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