Highly selective synthesis of 4(5)-aryl-, 2,4(5)-diaryl-, and 4,5-diaryl-1H-imidazoles via Pd-catalyzed direct C-5 arylation of 1-benzyl-1H-imidazole
作者:Fabio Bellina、Silvia Cauteruccio、Annarita Di Fiore、Chiara Marchetti、Renzo Rossi
DOI:10.1016/j.tet.2008.01.051
日期:2008.6
direct C-2 arylation of imidazoles 9 with aryl halides underbase-free and ligandlessconditions. On the other hand, the four-step synthesis of imidazoles 1 from 8 also involves the regioselective bromination of compounds 9 and a Suzuki reaction of the resulting 5-aryl-1-benzyl-4-bromo-1H-imidazoles 11 with arylboronic acids 5 under phase-transfer conditions, followed by N-debenzylation.
Microwave-Promoted Rhodium-Catalyzed Arylation of Heterocycles through CH Bond Activation
作者:Jared C. Lewis、Jessica Y. Wu、Robert G. Bergman、Jonathan A. Ellman
DOI:10.1002/anie.200504289
日期:2006.2.27
Novelli, Anales des la Asociacion Quimica Argentina, 1939, vol. 27, p. 162,164
作者:Novelli
DOI:——
日期:——
Rh(I)-Catalyzed Arylation of Heterocycles via C−H Bond Activation: Expanded Scope through Mechanistic Insight
作者:Jared C. Lewis、Ashley M. Berman、Robert G. Bergman、Jonathan A. Ellman
DOI:10.1021/ja0748985
日期:2008.2.1
A practical, functional group tolerant method for the Rh-catalyzed direct arylation of a variety of pharmaceutically important azoles with aryl bromides is described. Many of the successful azole and aryl bromide coupling partners are not compatible with methods for the direct arylation of heterocycles using Pd(0) or Cu(I) catalysts. The readily prepared, low molecular weight ligand, Z-1-tert-butyl-2