Diphosphorus tetraiodide deoxygenation

The reductive coupling of carbonyl compounds to olefins has also been effected by WCl6-LiAlH4, and by some tungsten and molybdenum carbonyls/ Further procedures for the deoxygenation of epoxides to olefins are described/ trifluoroacetyl iodide with sodium iodide and diphosphorus tetraiodide are particularly effective and can be used under mild conditions. 

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