EnglishThe first palladium- and copper-mediated C-2 arylations of thiazole, oxazole, N-methylimidazole and N-arylimidazoles, as well as of free (NH)-imidazole, -benzimidazole and -indole, with aryl iodides under ligandless and base-free conditions are described. Complete selectivity has been achieved under these unprecedented conditions, which allow the use of substrates containing base-sensitive groups, such the NH groups of imidazole, benzimidazole or indole, without their prior protection. No N-arylation products were detected in the arylation of free (NH)-imidazole, -benzimidazole and indole. (c) Wiley-VCH Verlag GmbH & Co.
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http://hdl.handle.net/11568/205332| Autori interni: | BELLINA, FABIO ROSSI, RENZO |
| Autori: | Bellina F; Cauteruccio S; Rossi R |
| Titolo: | Palladium- and copper-mediated direct C-2 arylation of azoles - Including free (NH)-imidazole, -benzimidazole and -indole - Under base-free and ligandless conditions |
| Anno del prodotto: | 2006 |
| Abstract: | The first palladium- and copper-mediated C-2 arylations of thiazole, oxazole, N-methylimidazole and N-arylimidazoles, as well as of free (NH)-imidazole, -benzimidazole and -indole, with aryl iodides under ligandless and base-free conditions are described. Complete selectivity has been achieved under these unprecedented conditions, which allow the use of substrates containing base-sensitive groups, such the NH groups of imidazole, benzimidazole or indole, without their prior protection. No N-arylation products were detected in the arylation of free (NH)-imidazole, -benzimidazole and indole. (c) Wiley-VCH Verlag GmbH & Co. |
| Digital Object Identifier (DOI): | 10.1002/ejoc.200500957 |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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