Everything about Johannes Thiele Chemist totally explained
Friedrich Karl Johannes Thiele (
May 13 1865 –
April 17 1918) was a
German chemist and a prominent professor at several universities, including those in
Munich and
Strasbourg. He developed many laboratory techniques related to isolation of organic compounds. In 1917 he described a device for the accurate determination of
melting points, since named
Thiele tube after him.
Early days
Thiele was born in
Ratibor,
Germany, now
Racibórz,
Poland.
Contributions to organic chemistry
Johannes Thiele was ahead of his time in
organic chemistry. After
Kekulé's proposal for
benzene structure in 1865, he predicted the
resonance that existed in benzene in 1899 and proposed a resonance structure, by using a broken circle to represent the partial bonds.
He discovered the condensation of
ketones and
aldehydes with
cyclopentadiene as a route to
fulvenes. He also recognized that these deeply colored species were related to but isomeric with benzene derivatives.
Nobelist
Heinrich Otto Wieland was his student.
Further Information
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