Synthesis of new chiral amino ether derivatives: synthetic application of meso aziridinium ions prepared from β-amino alcohols
作者:Mariappan Periasamy、Muthu Seenivasaperumal、Vutukuri Dharma Rao
DOI:10.1016/j.tetasy.2004.10.026
日期:2004.12
Methods of synthesis of new chiral amino ether derivatives through the opening of aziridinium ions, prepared in situ using trans-(+/-)-2-(1-N,N-dialkylamino)cyclohexyl mesylate with (R)-(+)-1,1'-bi-2-naphthol, are described. The (R,R,R)-diastereomer was obtained as the major product and isolated as an enantiopure salt, and characterized by single crystal X-ray analysis. The C-2-chiral (R,R,R,R,R)-diamino ether was obtained as the major product by opening of the aziridinium ion, prepared using trans-(+/-)-2-(1-pyrrolidino)cyclohexyl mesylate and (R)-(+)-1,1'-bi-2-naphthol in the presence of aq NaOH. This was also characterized by single crystal X-ray analysis. (C) 2004 Elsevier Ltd. All rights reserved.