Salman, YgMakinabakan, OYuceer, L2019-10-272019-10-2719940040-40390040-4039https://doi.org/10.1016/0040-4039(94)88475-7https://hdl.handle.net/11454/33678One step formation of the tricyclic dichloroethylidyne ortho esters from the reaction of trichloroethylidene acetals of D-galactose and D-arabinose with K tert-butoxide are described. The possible intermediate, ie, ketene acetal was prepared separately, from the suitably protected 1,2-O-trichloroethylidene-alpha-D-galactofuranose Stereoselective formation of an ortho ester anhydride, from the ketene acetal is also describeden10.1016/0040-4039(94)88475-7info:eu-repo/semantics/closedAccessArticle354992339236WOS:A1994PV50400031N/A