Synthesis of chiral allyltitaniums having an amino group at the C-4 position and their diastereoselective addition reaction with aldehydes
摘要:
Chiral allyltitaniums having an amino substituent at the C-4 position are prepared from optically active allylic alcohol derivatives 1 and Ti(O-i-Pr)(4)/2i-PrMgCl reagent, which, in turn, react with aldehydes regio-and stereoselectively to afford 3-amino-2-vinylalkanols in excellent yields. (C) 1997 Elsevier Science Ltd.
Regioselective ring opening of chiral epoxyalcohols by primary amines
作者:Marc Canas、Marta Poch、Xavier Verdaguer、Albert Moyano、Miquel A. Pericàs、Antoni Riera
DOI:10.1016/0040-4039(91)80447-e
日期:1991.11
A reinvestigation of the titanium(IV)-mediated reaction of primary amines with chiral 2,3-epoxyalcohols shows that, contrary to previous reports, this reaction constitutes a general and practical process for the enantioselective synthesis of 3-amino-1,2-diols.