One-Pot Double Suzuki−Miyaura Couplings: Rapid Access to Nonsymmetrical Tri(hetero)aryl Derivatives
作者:Floriane Beaumard、Philippe Dauban、Robert H. Dodd
DOI:10.1021/ol900358n
日期:2009.4.16
We describe a one-pot, simultaneous Suzuki−Miyaura cross-coupling of two different aryl boronic acids with symmetrical dibromo aryl and heterocyclic substrates to give as major products the unsymmetrical disubstituted tri(hetero)aryl derivatives. Yields of unsymmetrical dicoupled products were generally in the 52−75% range. This methodology is particularly suited to the generation of chemical libraries
Synthesis of Nonsymmetrical 5-Aryl-2-indolopyrrole Derivatives via Controlled Mono Suzuki-Miyaura Cross-Coupling on N-Boc-2,5-dibromopyrrole
作者:Robert Dodd、Floriane Beaumard、Philippe Dauban
DOI:10.1055/s-0030-1258284
日期:2010.12
The first example of mono Suzuki-Miyaura cross-coupling of N-Boc-2,5-dibromopyrrole with a boronic acid (indol-2-ylboronic acid) is reported. The resulting 2-indolyl-5-bromopyrrole derivative was in turn coupled with a variety of aryl- or heteroarylboronicacids thereby providing the corresponding non-symmetrical 2,5-disubstituted pyrroles in good to excellent yields. The tert-butoxycarbonyl (Boc)