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Catalysts based on natural phosphate (NP) are able to catalyze the synthesis of α-hydroxyphosphonates by reaction of dimethyl or diethyl phosphite with aldehydes and ketones at room temperature. This eco-friendly method is more efficient with modified phosphate, either impregnated with KF (KF/NP) or modified with sodium (Na/NP). Excellent yields (89–99%) were obtained with Na/NP in very short reaction...
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