Q Institute of Chemistry. Faculty of Science. University of Belgrade. Studentski trg 16. PO Box 550. YU-11001. Belgrade. Yugoslavia b Institute of Chemistry Technology and Metallurgy. Faculty of Science. University of Belgrade. Studentski trg 16. PO Box 550. YU-11001. Belgrade. Yugoslavia and C Research Department. Galenika Pharmaceutical Co .• 29 Not'embra 111. 11000 Belgrade. Yugoslavia ... A study on the synthesis of penicillanic acid 1, I-dioxide, ...