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1,3‐Diphosphacyclobutene Cobalt Complexes

Rödl, Christian ; Schwedtmann, Kai ; Weigand, Jan J. ; Wolf, Robert


The synthesis and characterization of rare 1,3-diphosphacyclobutene transition-metal complexes is described. Reactions of the cobalt-hydride complex [Co(P(2)C(2)tBu(2))(2)H] (G) with nBuLi, tBuLi, or PhLi afforded [Li(solv)(x){Co(eta(3)-P(2)C(2)tBu(2)HR)(eta(4)-P(2)C(2)tBu(2))}] (1: R=nBu, (solv)(x)=(Et2O)(2); 2: R=tBu, (solv)(x)=(thf)(2); 3: R=Ph, (solv)(x)=(Et2O)(thf)(2)), with an ...


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