Oscar Hinsberg
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Oscar Heinrich Daniel Hinsberg (21 October 1857 – 13 February 1939) was a German chemist.
Hinsberg was born in Berlin, Kingdom of Prussia. In 1882 he obtained his doctorate in sciences at the University of Tübingen,[1] later serving as a professor at the Universities of Freiburg and Geneva.[2]
He is known for research involving synthesis of oxindole, sulfone and thiophene.[3] In 1890 he introduced the "Hinsberg reaction", a test used for differentiation of primary, secondary and tertiary amines.[4]
