Hugo Erdmann
Hugo Wilhelm Traugott Erdmann was the German chemist who discovered, together with his doctoral advisor Jacob Volhard, the Volhard-Erdmann cyclization. In 1898 he was the first who coined the term noble gas.
Erdmann invented the name Thiozone in 1908, hypothesizing that S3 made up a large proportion of liquid sulfur.
In collaboration with Rudolph Fittig, Erdmann found that dehydration of γ-phenyl structural analog of isocrotonic acid produced α-naphthol, an observation that provided evidence in understanding the nature of naphthalene.
