No abstract

No abstract

No abstract

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Cationic η2-thiocarbene complexes of molybdenum and tungsten [Cp(CO)PMe3[BF4] (R = Me, Ph, Tol) add N3COOMe to the electron rich metal carbon double bond to yield the corresponding bicyclic system. The products have been characterized by 1H, 13C, 31P NMR, IR and mass spectra. The crystal structure of 4b has been determined: space group P21/n with a = 1749.9(7), b = 827.9(1), c = 1846.8(7) pm and Z = 4.