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Molecules 2001, 6(4), 390-395; doi:10.3390/60400390
Article

Synthesis of the New Type of Water-Soluble Ligand N,N-Bis-(diphenylphosphinomethyl)-2-aminoethylphosphonic Acid (Ph2PCH2)2NCH2CH2PO3H2 and Its Sodium Salt

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Received: 4 July 2000 / Revised: 25 September 2000 / Accepted: 26 September 2000 / Published: 31 March 2001
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Abstract

The novel water-soluble ligand, N,N-bis(diphenylphosphinomethyl)-2-aminoethylphosphonic acid, (Ph2PCH2)2NCH2CH2PO3H2, had been synthesized in quantitative yield by reaction of 2-aminoethylphosphonic acid with bis(hydroxymethyl)-diphenylphosphonium chloride in water. Its mono- and disodium salts, which can be used as water-soluble ligands for transition metal complex catalysts, were also easily prepared under mild conditions.
Keywords: N; N-Bis(diphenylphosphinomethyl)-2-aminoethylphosphonic acid; Synthesis N; N-Bis(diphenylphosphinomethyl)-2-aminoethylphosphonic acid; Synthesis
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Ma, X.; Fu, X.; Li, L.; Chen, J. Synthesis of the New Type of Water-Soluble Ligand N,N-Bis-(diphenylphosphinomethyl)-2-aminoethylphosphonic Acid (Ph2PCH2)2NCH2CH2PO3H2 and Its Sodium Salt. Molecules 2001, 6, 390-395.

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