in water T=25°C; Equilibrium constant;

1: diisopropyl (2-((4-methoxybenzyl)amino)-2-oxoethyl)phosphonate; benzaldehyde With potassium tert-butylate in tetrahydrofuran T=20°C; Horner-Wadsworth-Emmons Olefination; 6 h; 2: (carboxymethyl)trimethylammonium chloride hydrazide in tetrahydrofuran; methanol stereoselective reaction;

oxonium in water T=25°C; analogous reaction with different acids as catalysts; Rate constantEquilibrium constantMechanism;