... A Reinvestigation Marcel Temciuc, Anna-Britta Hörnfeldt and Salo Gronowitz* Organic Chemistry 1, Chemical Center, Lund University, Box 124, S-22100 Lund, Sweden Received ... J. Heterocyclic Chem., 32,791 (1995). ... [3] HL Coonradt, HD Hartough and G. С Johnson, J. Am. ...