Answers are grounded in this paper and cite their sources.
This research demonstrates the synthesis of phosphaketenes in organophosphorus chemistry, suggesting their utility in future reactions.
Phosphaketenes are important versatile reagents in organophosphorus chemistry. We herein report on the synthesis of novel mono- and bis-phosphaketenes based on redox-active acenaphthene-1,2-diimine ligands (bian) and their reactions with bian-gallylene and a trityl radical. The interaction of diiodide gallium(III) [(ArBIG-bian)GaI₂] (ArBIG-bian = 1,2-bis[(2,6-dibenzhydryl-4-methylphenyl)imino]acenaphthene) with two equivalents of sodium phosphaethynolate [Na(PCO)(diox)0.5] gives the first paramagnetic phosphaketene [(ArBIG-bian)Ga(PCO)₂] (1). Reaction of 1 with gallylene [(ArBIG-bian)Ga] leads to phosphaketene [(ArBIG-bian)Ga(PCO)] (2). Gallium phosphaketene [(ArBIG-bian)Ga(Py)(PCO)] (3) is formed as a result of the interaction between diimine ArBIG-bian and excess gallium metal in the presence of gallium chloride in pyridine and a subsequent metathesis reaction with sodium phosphaethynolate. The addition of a trityl radical to 3 produces a sterically hindered alkyl complex [(ArBIG-bian)Ga(CPh₃)] (4). New compounds 1-4 have been characterized by ESR (1) and NMR (2-4) spectroscopy; their molecular structures have been established by single-crystal X-ray analysis. The electronic structures of 1-4 and reaction thermodynamics were studied by DFT calculations.
No takes yet. Share an insight, caveat, or question.
Skatova et al. (2026) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: