Page 1. SYNTHETIC COMi"ICATIONS, 15(8), 697-706 (1985) AN EFFICIENT METHOD FOR THE CONVERSION OF ARYLEDRAZINES INTO Z-ARYL-4,4-DIALKYLSEMICARBAZIDES K. H. Pilgram ... under acidic 697 Copyright 0 1985 by Marcel Dekker, Inc. 0039-79 11/85/1508-0697 $3.50/0 Page 2. ... NH2) and 7.1 ppm (3, m, CH=). References 1) Pilgram, KH, (a) German patent, 2,519,393, 1975, and U. S. patent, 3,984,463, 1976; Chem. Abstr., 1976, 86, 58994~; ...