83746-94-5

Upstream product

• 60875-46-9 tetracarbonylbis(dimethylsulfoniummethylide)chromium⁽⁰⁾ 
• 2071-20-7 bis-diphenylphosphinomethane 
• 58751-37-4 pentacarbonyl(dimethyloxosulfoniomethanide)chromium 

Downstream Products

• 118611-81-7 tetracarbonyl{((diphenylphosphino)methyl)diphenylphosphoniomethanide-α-C,ω-P}chromium(I) hexafluorophosphate 
• 101049-00-7 tetracarbonyl{(1-diphenylphosphinoethyl)diphenylphosphoniomethanide-α-C,ω-P}chromium(0) 

Relevant academic research and scientific papers

Transition Metal Complexes of Instable Ylides, II. Stabilization of Phosphino- and Arsinomethyl-substituted Phosphonium- and Arsonium Ylides by Coordination to Tetracarbonylchromium

The sulfur ylide complexes (CO)5Cr (1) and (CO)4Cr2 (7) react with symmetrically substituted ditertiary phosphanes or arsanes such as 5 to yield five-membered metallacycles (6), in which the ylides CH2=ER21-CR22-ER21 (E = P, As) are incorporated as chelate ligands.The free ylidic ligands are not stable.The structures of 6 are elucidated by means of IR, 1H and 31P NMR spectroscopy as well as by an X-ray structure analysis of 6f.