[P:1]([O-:8])([O:5]CC)[O:2]CC.O.[CH3:10][CH:11]([NH2:20])[CH2:12][O:13][C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1>C(O)C>[CH2:10]([P:1](=[O:2])([O-:5])[O-:8])[CH3:11].[CH3:10][CH:11]([NH3+:20])[CH2:12][O:13][C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1.[CH3:10][CH:11]([NH3+:20])[CH2:12][O:13][C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1A mixture of 13.81 g. (0.1 moles) of diethyl phosphite, 20 ml. of water and 20 ml. of ethanol is reacted with a mixture of 15.12 g. (0.1 moles) of 1-methyl-2-phenoxyethyl amine and 30 ml. of ethanol as described in Example 1. 21.4 g. of 1-methyl-2-phenoxyethyl-ammoniumethyl phosphonate is obtained. Yield: 81.9%.
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