Title: Electrochemical intramolecular cyclisation of propargyl bromoethers catalysed by nickel complexes
Abstract: The electrochemical intramolecular cyclisation of propargyl 2-bromoethers 1–3 in N,N′-dimethylformamide at constant current in a diaphragmless cell has been developed using NiII complexes as electron-transfer mediators. During controlled-current electrolyses of solutions of NiII complexes in the presence of bromoethers, catalytic reduction of the latter proceeds via one-electron cleavage of the carbon–bromine bond to form a radical intermediate that undergoes cyclisation to afford the cyclic compounds in moderate to good yields.
Publication Year: 2005
Publication Date: 2005-01-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 20
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