Back Cover: Synthetic Origin of Tramadol in the Environment (Angew. Chem. Int. Ed. 1/2016)

Tramadol was recently found in roots of Sarcocephalus latifolius and other plants as well as in soil and water in Northern Cameroon, which has led to an extensive discussion on its natural or synthetic origin. In their Communication on page240ff., M. Spiteller etal. unambiguously confirm that synthetic tramadol has indeed contaminated the environment in rural as well as densely populated areas of Northern Cameroon.