... Please enable JavaScript to use all the features on this page. Tetrahedron Letters. Volume 35, Issue 14, 4 April 1994, Pages 2175–2178. Cover image Cover image. Synthèse directe d'azotures de glycosyle. ... Accepted 3 February 1994, Available online 9 March 2001. Abstract. Azidation of some unprotected aldoses with the Ph 3 PN-chlorosuccinimide-LiN 3 system leads regioselectively to glycosyl axides ; 1,2-trans compounds are obtained stereoselectively. ...