Highly stereoselective synthesis of C-vinyl furanosides through acid-catalyzed SN2 inversion at the C-3 position of 1,2-dideoxy-hept-1-enitols
作者:Hitoshi Tsuchiya、Noriaki Asakura、Yasunori Ikeda、Hidetoshi Yamada
DOI:10.1016/j.carres.2008.08.017
日期:2008.11
A highly stereoselective synthesis of C-vinyl furamosides through the S(N)2 inversion at the C-3 position of the 1,2-dideoxy-hept-1-enitols is disclosed. Treatment of the 1,2-dideoxy-hept-1-enitols with diphenylammonium trifluoromethanesulfonate as the acid catalyst produced the C-vinyl furanosides (3,6-anhydro-1,2-dideoxy-hept-1-enitol derivatives) via a subsequent S(N)2 intramolecular debenzyloxyationcycloetherification reaction at the C-3 position. (C) 2008 Elsevier Ltd. All rights reserved.