... Please enable JavaScript to use all the features on this page. Tetrahedron. Volume 45, Issue 24, 1989, Pages 7795–7804. Cover image Cover image. ... References. (1); J. Nasielski, S. Heilporn, R. Nasielski-Hinkens, F. Geerts-Evrard; Tetrahedron, 43 (1987), p. 4329. ...