Fritsch–Buttenberg–Wiechell rearrangement

Fritsch–Buttenberg–Wiechell rearrangement
Named after Paul Ernst Moritz Fritsch
Wilhelm Paul Buttenberg
Heinrich G. Wiechell
Reaction type Rearrangement reaction
Identifiers
RSC ontology ID RXNO:0000250

The Fritsch–Buttenberg–Wiechell rearrangement, named for Paul Ernst Moritz Fritsch (1859–1913), Wilhelm Paul Buttenberg, and Heinrich G. Wiechell, is a chemical reaction whereby a 1,1-diaryl-2-bromo-alkene rearranges to a 1,2-diaryl-alkyne by reaction with a strong base such as an alkoxide.

This rearrangement is also possible with alkyl substituents.

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