[Diphenylmethylenamino(organyloxy)carben]- und [alkylthio(diphenylmethylenamino)carben]-pentacarbonylwolfram-komplexe durch insertion von RXCN (X = O, S) in die wolfram-carbenkohlenstoff-bindung

Abstract Pentacarbonyl(diphenylcarbene)tungsten reacts with organyl cyanates, ROCN (R = Ph, Et, Pr i ), or alkyl thiocyanates, R′SCN (R′ = Me, Et, Pr i ), respectively, inserting the CN group into the tungsten—carbene bond to give pentacarbonyl[diphenylmethyleneamino(organyloxy)carbene]tungsten or pentacarbonyl[alkylthio(diphenylmethyleneamino)carbene]tungsten complexes, respectively. Apart from these insertion products, other complexes are obtained which correspond to formal substitution of the carbene ligand by ROCN or R′SCN. The new carbene complexes are characterized analytically and spectroscopically and pentacarbonyl[diphenylmethyleneamino(ethylthio)carbene]tungsten also by X-ray analysis.