... Departments of Organic Chemistry, University of Saarland, 0-6600 Saarbriicken, Federal Republic of Germany, and University of Nijmegen, Toernooiveld, 6525 ED Nijmegen, The Netherlands Received March 29, 1983 ... (9) Kuhle, E. "The Chemistry of the ... a-Oxo Sulfones J. Org. ...