choline-based ionicliquid [Ch-OSO3H] was prepared and used as a novel catalyst for the synthesis of α-aminophosphonates via a one-potthree-componentreaction with aldehydes, amines, and triethyl phosphite/diethyl phosphite at room temperature under solvent-free conditions or in aqueous media. The reaction was completed in short times and products could be simply separated from the reaction mixture in
been developed for the synthesis of a series of α-aminonitriles via the one-pot three-component Strecker reactions between various aldehydes, amines and trimethylsilyl cyanide using a catalytic amount of mandelic acid as a naturally occurring, low-cost, efficient organo-catalyst undersolvent-freeconditions at room temperature. Under the same optimized conditionssynthesis of α-aminophosphonates were
Zinc oxide nanoparticles (ZnO NPs, ca. 22 nm) were used as an effective catalyst in the solvent-free, three-component couplings of aldehydes, aromatic amines and dialkyl phosphites at room temperature to produce various α-amino phosphonates. Compared to known methods, satisfactory results were obtained with high yields through a simple experimental procedure. The catalyst was recycled and reused five times with minor decrease in its catalytic activity.
One-potthree-componentKabachnik–Fieldssynthesis of α-aminophosphonates with high yields from the reaction between carbonyl compound, primary amine, and substituted phosphite can be carried out in a short period, using H-beta zeolite as a reusable catalyst.