... Please enable JavaScript to use all the features on this page. Tetrahedron. Volume 48, Issue 35, 1992, Pages 7071–7082. Cover image Cover image. Oxidation of ylide precursors to vicinal tricarbonyls. ... (1); HH Wasserman, LJ Lombardo; Tetrahedron Lett., 30 (1989), p. 1725. ...