Reaction of Trichloro(o-phenylenedioxy)phosphorane with Four-Coordinate Phosphorus Esters

Reactions of trialkyl phosphates and dialkyl alkenylphosphonates with trichloro(o-phenylenedioxy)phosphorane result in selective replacement of one alkoxy group on the phosphorus by a chlorine atom. Alkylphosphonates react with trichloro(o-phenylenedioxy)phosphorane to give alkyl alkylphosphonochloridates as the major products and small amounts of alkylphosphonic dichlorides

Reactions of Phosphorylsulfenyl Chlorides with 2H-1,2,3-Diazaphospholes

Formation of a quasiphosphonium salt in reaction of phosphorylsulfenyl chlorides with 1,2,3-diazaphospholes was established by dynamic 31P NMR spectroscopy. The salt is formed by addition of 2 mol of phosphorylsulfenyl chloride to the σ2λ3P=C endocyclic fragment by the 1,1- and 1,2-addition schemes. Decomposition of the salt yields mainly O,O-dialkyl phosphothiochloridate and, to a lesser extent, dialkyl phosphochloridate

Reaction of Trichloro(o-phenylenedioxy)phosphorane with Four-Coordinate Phosphorus Esters

Reactions of trialkyl phosphates and dialkyl alkenylphosphonates with trichloro(o-phenylenedioxy)phosphorane result in selective replacement of one alkoxy group on the phosphorus by a chlorine atom. Alkylphosphonates react with trichloro(o-phenylenedioxy)phosphorane to give alkyl alkylphosphonochloridates as the major products and small amounts of alkylphosphonic dichlorides

Reaction of Trichloro(o-phenylenedioxy)phosphorane with Four-Coordinate Phosphorus Esters

Reactions of trialkyl phosphates and dialkyl alkenylphosphonates with trichloro(o-phenylenedioxy)phosphorane result in selective replacement of one alkoxy group on the phosphorus by a chlorine atom. Alkylphosphonates react with trichloro(o-phenylenedioxy)phosphorane to give alkyl alkylphosphonochloridates as the major products and small amounts of alkylphosphonic dichlorides

Reactions of Phosphorylsulfenyl Chlorides with 2H-1,2,3-Diazaphospholes

Formation of a quasiphosphonium salt in reaction of phosphorylsulfenyl chlorides with 1,2,3-diazaphospholes was established by dynamic 31P NMR spectroscopy. The salt is formed by addition of 2 mol of phosphorylsulfenyl chloride to the σ2λ3P=C endocyclic fragment by the 1,1- and 1,2-addition schemes. Decomposition of the salt yields mainly O,O-dialkyl phosphothiochloridate and, to a lesser extent, dialkyl phosphochloridate

Reactions of Phosphorylsulfenyl Chlorides with 2H-1,2,3-Diazaphospholes

Formation of a quasiphosphonium salt in reaction of phosphorylsulfenyl chlorides with 1,2,3-diazaphospholes was established by dynamic 31P NMR spectroscopy. The salt is formed by addition of 2 mol of phosphorylsulfenyl chloride to the σ2λ3P=C endocyclic fragment by the 1,1- and 1,2-addition schemes. Decomposition of the salt yields mainly O,O-dialkyl phosphothiochloridate and, to a lesser extent, dialkyl phosphochloridate

Reactions of Phosphorylsulfenyl Chlorides with 2H-1,2,3-Diazaphospholes

Formation of a quasiphosphonium salt in reaction of phosphorylsulfenyl chlorides with 1,2,3-diazaphospholes was established by dynamic 31P NMR spectroscopy. The salt is formed by addition of 2 mol of phosphorylsulfenyl chloride to the σ2λ3P=C endocyclic fragment by the 1,1- and 1,2-addition schemes. Decomposition of the salt yields mainly O,O-dialkyl phosphothiochloridate and, to a lesser extent, dialkyl phosphochloridate