Abstract
The title compound, C 16 H 19 ClNO 3 P, is one of a series of α-substituted aminomethyl phosphonates. There are two independent molecules in the asymmetric unit and in each the P atom adopts a tetrahedral configuration. The P=O double-bond length and the mean P-O single-bond length are 1.425(5) and 1.560 (5) A for molecule (1) and 1.417(6) and 1.562(5) A for molecule (2), respectively. The P=O double-bond lengths in both molecules are shorter than those in 1,3,2-oxazaphospholidine derivatives and caged bicyclic phosphorus compounds.
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