Comments on reactions of oxide derivatives of uranium with hexachloropropene to give UCl4

We report that U3O8, UO2(NO3)(2)center dot 6H(2)O, and UO2Cl2 react with hexachloropropene (HCP) to give UCl4 in 60, 100, and 92% yields, respectively, and report a protocol to recycle the HCP. This renders the preparation of UCl4 more accessible and sustainable. 2,5-Dichlorohexachlorofulvene has been identified as a significant by-product from these reactions.