Phenylphosphonic dichloride
CAS number: 824-72-6
Phenylphosphonic dichloride is an organophosphorus compound with a colorless to light yellow liquid that is used as a reactant and chlorinating agent in various chemical syntheses.
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Benzyl alcohol 1a was reacted with 1.25 equivalents of phenylphosphonyl dichloride (PPDC; PhP(O)Cl2) in the presence of triethylamine (Et3N) to afford a mixture of mono- and bis-phosphates. The monosubstituted product was reacted directly with p-cresol without purification to afford the desired phenylphosphonate 2a.
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