... Yongseog Chung, Brook F. Duerr, Timothy A. McKelvey, P. Nanjappan, and Anthony W. Czarnik* Department of Chemistry, The Ohio State University, Columbus, Ohio 43210 Received June 7, 1988 ... Ind. 1965, 1685. Page 3. 1020 J. Org. Chem., Vol. 54, No. 5, 1989 Chung et al. ...