Born on January 5, 1950 in Wesel. Doctorate Cologne Univ. (1978), German Habilitation Cologne Univ. (1986), Associate Professor of Organic Chemistry Karlsruhe Univ. (1987), Full Professor of Bioorganic Chemistry Bonn Univ. (1994), Director and Scientific Member at the Max Planck Institute for Chemical Ecology (since 1996), Honorary Professor Friedrich Schiller University Jena (since 1998).