Episode 165
Fischer–Hepp rearrangement
Sun, 2017-Oct-15 20:43 UTC
Length - 1:39
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Welcome to random Wiki of the Day where we read the summary of a random Wikipedia page every day.
Our random article today is Fischer–Hepp rearrangement.
The Fischer–Hepp rearrangement is a rearrangement reaction in which an aromatic N-nitroso or nitrosamine converts to a carbon nitroso compound:
This organic reaction was first described by the German chemist Otto Philipp Fischer (1852–1932 ) and Eduard Hepp (June 11, 1851 – June 18, 1917) in 1886, and is of importance because para-NO secondary anilines cannot be prepared in a direct reaction.
The rearrangement reaction takes place by reacting the nitrosamine precursor with hydrochloric acid. The chemical yield is generally good under these conditions, but often much poorer if a different acid is used. The exact reaction mechanism is unknown but there is evidence suggesting an intramolecular reaction.
This recording reflects the Wikipedia text as of 20:43 UTC on Sunday, 15 October 2017.
For the full current version of the article, search Wikipedia for Fischer–Hepp rearrangement.
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