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Indirect electrochemical cyclization of bromoalkoxylated derivatives mediated by nickel(II) complex in environmentally friendly medium

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Detalhes bibliográficos
Resumo:An improved procedure has been developed using a catalytic amount of a nickel(II) complex in the efficient and selective electrochemical cyclization of propargyloxy and allyloxy bromo derivatives into substituted tetrahydrofurans using ethanol and ethanol–water mixtures as environmental-friendly systems. The reduction of the substrates proceeded via one-electron cleavage of the carbon–bromine bond to form a radical-type intermediate that undergoes cyclization to afford the tetrahydrofuran structures in good yields.
Autores principais:Duñach, E.
Outros Autores:Medeiros, Maria José
Assunto:Ethanol solvent Cyclization Nickel(II) complex Electroreduction Heterocycles
Ano:2008
País:Portugal
Tipo de documento:artigo
Tipo de acesso:acesso aberto
Instituição associada:Universidade do Minho
Idioma:inglês
Origem:RepositóriUM - Universidade do Minho

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