The condensation and decomposition of alkaline earth and phenyl phosphoramidates with acids.

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概要

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• Alkaline earth and phenyl phosphoramidates were reacted with dried hydrogen chloride, acetic acid, and oxalic acid. The alkaline earth phosphoramidates other than the magnesium salt reacted with the acids to produce ortho- and polyphosphates, but did not react with them to make polyphosphates containing imino groups. The hydrolysis of the phosphoramidates to orthophosphate has been considered to be the initiation of the production of polyphosphates:<BR>(<U>Remark: Graphics omitted.</U>)<BR>where M stands for an alkaline earth metal ion. The formation of polyphosphates can be explained, for example, by this equation:<BR>(<U>Remark: Graphics omitted.</U>)<BR>where HA stands for acid. Magnesium phosphoramidate reacted with acetic acid and oxalic acid to produce orthophosphate, polyphosphates, and imidodiphosphate. The production of the imidodiphosphate can be indicated by the following equation:<BR>(<U>Remark: Graphics omitted.</U>)

• 公益社団法人 日本化学会の論文

著者

• Sato Shoji

  Department of Applied Chemistry, College of Engineering, Chubu University, 1200 Matsumoto-cho, Kasugai, Aichi 487-8501, Japan

• Watanabe Makoto

  Department of Analytical Chemistry of Medicines, Showa Pharmaceutical University

• Takayanagi Takao

  Department of Industrial Chemistry, Chubu University

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