In comparison to iron(ii) halides, iron(ii) triflate exhibits a greater resistance towards reduction by p-tolylmagnesium bromide. This knowledge has led to the development of an iron(ii) triflate/N-heterocyclic carbene-catalysed cross-coupling system of aryl Grignard reagents with aryl chlorides and tosylates with high efficiency, even surpassing that of previously reported catalyst systems employing strongly coordinating counterions in some cases.
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Iron(ii) triflate/N-heterocyclic carbene-catalysed cross-coupling of arylmagnesiums with aryl chlorides and tosylates.
Chem Commun (Camb)
January 2016
Institute of Chemical and Engineering Sciences (ICES), Agency for Science, Technology and Research (A*STAR), 8, Biomedical Grove, Neuros, #07-01, Singapore 138665.
In comparison to iron(ii) halides, iron(ii) triflate exhibits a greater resistance towards reduction by p-tolylmagnesium bromide. This knowledge has led to the development of an iron(ii) triflate/N-heterocyclic carbene-catalysed cross-coupling system of aryl Grignard reagents with aryl chlorides and tosylates with high efficiency, even surpassing that of previously reported catalyst systems employing strongly coordinating counterions in some cases.
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