Alpha-aminomethylene phosphonate betaines and polymers prepared

Details Alpha-aminomethylene phosphonate betaines and polymers prepared Alpha-aminomethylene phosphonate betaines and polymers prepared

1986-12-11

1987-11-17

Evans, J. E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

526278, 560222, 2605025E, C07F 938

Patent

active

047073063

ABSTRACT:
Alpha-aminoethylene phosphonate betaines of the formula ##STR1## R.sup.1 is hydrogen or methyl; X is ##STR2## or CH.sub.2 ; a is 0, 1, 2, or 3, with the condition that when X is ##STR3## that a be greater than 1; R.sup.2 and R.sup.3 are independently C.sub.1 -C.sub.6 alkyl, aryl, benzyl, or cyclohexyl;

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The Direct Synthesis of .alpha.-Aminomethylphosphonic Acids. Mannich-Type Reactions with Orthophosphorus Acid, K. Moedritzer and R. R. Irani, J. of Organic Chemistry 31, p. 1603, May 1966.

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