... Please enable JavaScript to use all the features on this page. Tetrahedron Letters. Volume 37, Issue 6, 5 February 1996, Pages 853–856. ... 5. P. Chabardès, E. Kuntz, J. Varagnat; Tetrahedron, 33 (1977), pp. 1775–1783. ... ME Vol'Pin; Tetrahedron Lett., 34 (1976), pp. 2981–2984. ...