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