Metallaoxetene formation by coupling of carbamoyl and difluorocarbene ligands
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The reaction of the carbamoyl complex [Fe{C(=O)NPri 2}CF3(CO)2(PPh3)] with potassium hydrotris(pyrazo-1-yl)borate provides the structurally characterized ferraoxetene[Fe{CF2OC(NPri2)}(CO){HB(pz) 3}](pz=pyrazol-1-yl), presumably via coupling of the carrbamoyl of the carbammoyl ligand with a difluorocarbene intermediate.
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Chemical Communications