172328-75-5

Upstream product

• 145565-69-1 (C₅H₅)W(CO)(PH(C₆H₅)2)(P(C₆H₅)2) 
• 109-90-0 ethyl isocyanate 

Relevant academic research and scientific papers

Formation of the metal-coordinated chelating bis-phosphorus ligand Ph2PN(Et)C(O)PPh2 via a novel [3 + 2] cycloaddition between the phosphenium complexes Cp(CO)(HPh2P)M=PPh2 (M = Mo, W) and ethyl isocyanate

Convenient access to the unusual hydrido complexes Cp(CO)(H)MPPh2C(O)N(Et)PPh2 (M = Mo (4a,a′), W (4b,b′)), obtained as mixtures of two isomers, is established via cycloaddition between the phosphenium complexes Cp(CO)(HPh2P)M=PPh2 (2a,b) and EtNCO (3). Reaction of 4a,b with carbon tetrachloride yields the analogous chloro complexes Cp(CO)(Cl)-MPPh2C(O)N(Et)PPh2 (5a,a′, 5b,b′); 5b′ has been characterized by X-ray analysis.