Cleavage and formation of P-C bonds during an unusual Kinnear-Perren reaction

摘要

Treatment of triphenylmethyldichlorophosphine 1 with aluminium trichloride in the presence of tert-butyl chloride leads, after hydrolysis, with high selectivity to di-tert-butylphosphinic chloride 5. The reaction is suggested to proceed via a chlorophosphinidene intermediate which is trapped by the alkyl chloride. [References: 19]