New approaches to ondansetron and alosetron inspire a versatile, flow photochemical method for indole synthesis
Wei Sun1, William A T Raimbach1, Luke D Elliott2
1Chemistry, University of Southampton, Highfield, Southampton, SO17 1BJ, UK. dch2@soton.ac.uk.
Abstract:
An oxidative photocyclisation of N-arylenaminones to indoles is described, that mirrors the Fischer indole synthesis but uses anilines in place of arylhydrazines. Its value is exemplified with new approaches to the WHO-listed APIs ondansetron and alosetron.
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