The authors thank the State of Mecklenburg–Vorpommern and the Bundesministerium für Bildung und Forschung (BMBF) for financial support. We also thank Mrs. K. Mevius, Dr. W. Baumann, Dr. C. Fischer and Mrs. S. Buchholz (LIKAT) for analytical support. Keywords: bromoanilines· benzoxazinones· carbonylation· heterocycles· palladium [1] a) L. Hedstrom, AR Moorman, RH Abeles, B iochemistry 1984, 23, 1753–1759; b) RL Stein, AM Strimpler, ...