The chiral hydrogenated tridentate Schiff base aluminum(III) complex has been first applied in the catalytic enantioselective hydrophosphonylation of trifluoromethyl ketones. The side reactions related to phospha-Brook rearrangement were completely avoided, and the corresponding quaternary a-hydroxy trifluoromethyl phosphonates have been first synthesized in good yields with high enantioselectivities (up to 90% ee).
Synthesis of O-phosphorylated 1-substituted 2,2,2-trifluoroethanols, serine hydrolase inhibitors
作者:A. Yu. Aksinenko、V. B. Sokolov、T. V. Goreva、G. F. Makhaeva
DOI:10.1007/s11172-010-0050-2
日期:2010.1
Reactivity of trifluoromethyl carbonyl compounds in a two-step reaction with dialkyl phos-phites (the Abramov reaction and phosphonate—phosphate rearrangement) has been studied and the scope of this reaction for the preparation of O-phosphorylated 1-substituted 2,2,2-trifluoro-ethanols, serine hydrolase inhibitors, has been determined.