Palladium-catalyzed Direct C–H Bond Arylation of Simple Arenes with Aryltrimethylsilanes
作者:Kenji Funaki、Hiroshi Kawai、Tetsuo Sato、Shuichi Oi
DOI:10.1246/cl.2011.1050
日期:2011.9.5
Direct C–H bond arylation of arenes with aryltrimethylsilanes catalyzed by PdCl2 in the presence of CuCl2 as an oxidant has been developed. In addition to the role as the oxidant, CuCl2 is found to be necessary for the selective cross-coupling reaction.
Direct CâH bond arylation of simple arenes with aryltin reagents has been successfully catalysed by PdCl2 in the presence of CuCl2. CuCl2 proved to be an activator for a palladium intermediate as well as an oxidant.
Synthesis of fluoranthenes by hydroarylation of alkynes catalyzed by gold(I) or gallium trichloride
作者:Sergio Pascual、Christophe Bour、Paula de Mendoza、Antonio M Echavarren
DOI:10.3762/bjoc.7.178
日期:——
Electrophilic gold(I) catalyst 6 competes with GaCl(3) as the catalyst of choice in the synthesis of fluoranthenes by intramolecularhydroarylation of alkynes. The potential of this catalyst for the preparation of polyarenes is illustrated by a synthesis of two functionalized decacyclenes in a one-pot transformation in which three C-C bonds are formed with high efficiency.
亲电金 (I) 催化剂 6 与 GaCl(3) 竞争作为通过炔烃分子内加氢芳基化合成荧蒽的首选催化剂。这种催化剂用于制备聚芳烃的潜力通过在一锅转化中合成两个官能化十环烯来说明,其中三个 CC 键高效地形成。
640. Synthesis of fluoranthenes. Part VI. Utilization of the Mannich reaction