190838-91-6Relevant articles and documents
New isoxazolidine-based chiral auxiliaries for asymmetric syntheses
Abiko, Atsushi,Liu, Ji-Feng,Wang, Guo-Qiang,Masamune, Satoru
, p. 3261 - 3264 (2007/10/03)
New chiral auxiliaries based on the bicyclic-isoxazolidine skeleton, 3-oxa-2,7-diazabicylo[3,3,0]octane derivatives, were synthesized in 60-80% overall yields from amino acids. Asymmetric alkylation and boron aldol reaction using the auxiliaries proceeded with high selectivities. 'Carboxylic amide' has been used for the asymmetric boron-mediated aldol reaction for the first time.