Organic chemist, born in Sarajevo, Bosnia and Herzegovina (formerly Austria–Hungary). He studied at the Prague Institute of Technology, then worked as an industrial chemist, before moving to Zagreb University. In 1941, when the Germans invaded Yugoslavia, he taught at the Federal Institute of Technology in Zürich, and became professor of chemistry (1950–76). Following his notable work in organic chemistry, and especially in stereochemistry, he shared the Nobel Prize for Chemistry in 1975.