In 1901 Wieland received his doctorate at the University of Munich while studying under
Johannes Thiele. In 1904 he completed his
habilitation, then continued to teach at the university and starting in 1907 was a consultant for
Boehringer Ingelheim. In 1914 he became associate professor for special topics in
organic chemistry, and director of the Organic Division of the State Laboratory in Munich. From 1917 to 1918 Wieland worked in the service of the (KWI)
Kaiser Wilhelm Institute for Physical Chemistry and Electrochemistry in
Dahlem then led by
Fritz Haber In 1941, Wieland isolated the toxin
alpha-amanitin, the principal active agent of one of the world's most poisonous mushrooms
Amanita phalloides. Wieland tried successfully to protect people, especially
Jewish students, who were "racially burdened" after the
Nuremberg Laws. Students who were expelled because they were "racially burdened" could stay in Heinrich Wieland's group as chemists or as "Gäste des Geheimrats" (guests of the privy councillor).
Hans Conrad Leipelt, a student of Wieland, was sentenced to death after collecting money for
Kurt Huber's widow Clara Huber. ==Family==