2-Aryl and 2-heteroaryl indoles from 1-alkynes and o-iodotrifluoroacetanilide through a domino copper-catalyzed coupling-cyclization process |
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| Authors: | Cacchi Sandro Fabrizi Giancarlo Parisi Luca M |
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| Affiliation: | Dipartimento di Studi di Chimica e Tecnologia delle Sostanze Biologicamente Attive, Università degli Studi La Sapienza, P.le A. Moro 5, 00185 Roma, Italy. sandro.cacchi@uniroma1.it |
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| Abstract: | [reaction: see text] A general method for the synthesis of 2-aryl and 2-heteroaryl indoles from aryl iodides and 1-alkynes through a domino copper-catalyzed process is reported. The best results have been obtained with [Cu(phen)(PPh(3))(2)]NO(3) in the presence of K(3)PO(4) in toluene or dioxane at 110 degrees C. 2-Aryl and 2-heteroaryl indoles can also be isolated in good yields by using catalysts derived from CuI and PPh(3) in dioxane at 110 degrees C. |
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