Abstract
The synthesis, chemical, and spectral properties of (3-amino-3-hydroxycarbonyl-propyl)phosphonous acid (2), bis(3-amino-3-hydroxycarbonylpropyl)phosphinic acid (5), (2-amino-2-hydroxycarbonylethyl)-methyl-phosphinic acid (6), (1-amino-2-hydroxycarbonylethyl)methylphosphinic acid (10), and of a structural isomer of phosphinothricin, (3-amino-2-hydroxycarbonylpropyl)-methylphosphinic acid (12) are described. While the phosphonous acid derivative 2 exhibited weak herbicidal activity, the acids 4, 5, 8, 10, and 12, showed no activity as herbicides. The phosphinic acid 12 showed weak plant growth regulator properties.
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