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DOI: 10.1055/sos-SD-023-00175

Palomo, C.; Aizpurua, J. M.Science of Synthesis, (200623235.

No general method is available for the syntheses of all types of phosphorus-substituted ketene. Phosphorylketenes 44 and 45 are generally prepared from α-phosphorylcarboxylic acids or their derivatives, typically the acid chlorides, by elimination, or from α-diazo-β-oxophosphonates by photolytic or rhodium-catalyzed Wolff rearrangement (see Sections and, respectively).

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