C. Ogric et al., CARBONYL CARBENE COUPLING ON CATIONIC ETA(2)-CARBENE COMPLEXES OF MOLYBDENUM AND TUNGSTEN, Inorganica Chimica Acta, 222(1-2), 1994, pp. 77-84
The reaction of eta2-phosphino- or eta2-thiocarbene complexes of molyb
denum and tungsten with sodium thiocyanate provides high yields of met
alla(phospha/thia)bicyclo[1.1.0]butanone compounds. The structures of
the new bicyclic complexes were determined by spectroscopic investigat
ions and, in the case of 6b, additionally by X-ray analysis.