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525-06-4O=C=C(c1ccccc1)c1ccccc1ZWJPCOALBPMBIC-UHFFFAOYSA-N525-06-4DTXSID50200497VerwendenDiphenylketene is used for acylation of carboxylic acids to give mixed anhydrides; cycloaddition with a variety of unsaturated compounds; synthetic source of diphenylallenes.
synthetischePreparative Methods of Diphenylketene: originally prepared by zinc reduction of α-chlorodiphenylacetyl chloride; oxidation of benzil monohydrazone with yellow Mercury(II) Oxide followed by thermal rearrangement of the α-diazo ketone; dehydrohalogenation of diphenylacetyl chloride with Triethylamine; debromination of α- bromodiphenylacetyl bromide by the action of Triphenylphosphine.
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