the substitution of the α-hydroxyphosphonates so-formed by primary amines to afford α-aminophosphonates, were evaluated by quantum chemical calculations at the B3LYP/6-31G(d,p) level. An unexpected neighboring group effect was found to enhance the substitution. A series of new α-aminophosphonates was synthesized by the microwave-assisted substitution of α-hydroxyphosphonates by alkylamines.
Synthesis of New α-Aminophosphonates Based on Cyclohexylamine
作者:A. V. Smolobochkin、A. S. Gazizov、K. A. Doszhanova、A. B. Kuandykova、B. Zh. Jiyembayev、A. R. Burilov、M. A. Pudovik、R. A. Cherkasov
DOI:10.1134/s1070363220060274
日期:2020.6
AbstractA series of new α-aminophosphonates was synthesized based on the acid-catalyzed Kabachnik–Fields reaction involving diethyl phosphite, cyclohexylamine and substituted benzaldehyde. Structure of the reaction products was established by IR, NMR spectroscopy, and mass spectrometry methods.