Samarium(<scp>II</scp>) iodide promoted reductive fragmentation of γ-halo carbonyl compounds: application to the enantiospecific synthesis of (–)-oudemansin A
The reductive regioselective bond-cleavage reaction of γ-halo carbonyl compounds with samarium(II) iodide is developed and its utilisation in the enantiospecific synthesis of (–)-oudemansin A is described.
A concise enantiospecific synthesis of nuphar piperidine alkaloids was achieved by employing a regioselective carbon-carbon bond cleavage reaction of the cyclopentane derivative, having a gamma-chloro carbonyl system, as a key reaction.