4591-28-0O=C=C(Cl)ClTVWWMKZMZALOFP-UHFFFAOYSA-Nstructure given in first source
4591-28-0DTXSID40196653Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.
UsesIchloroketene is a dichloroacetylating agent; it undergoes cyclization with a variety of substrates.
PreparationDichloroketene is typically prepared in situ by dehalogenation of trichloroacetyl halides or dehydrohalogenation of dichloroacetyl halides. Elimination of dichloroacetyl chloride with Triethylamine affords the desired ketene, although material formed in this manner is of limited reactivity. Reduction of Trichloroacetyl Chloride with Zinc/Copper Couple activated with either Phosphorus Oxychloride or 1,1- Dimethoxyethane provides fully reactive dichloroketene. Recently, thermal activation of Zinc dust was used to generate dichloroketene.
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