Iron-catalyzed direct α-arylation of ethers with azoles
作者:Arkaitz Correa、Béla Fiser、Enrique Gómez-Bengoa
DOI:10.1039/c5cc05005g
日期:——
The direct α-arylation of cyclic and acyclic ethers with azoles has been achieved, which features a novel iron-catalyzed cross-dehydrogenative coupling (CDC) process.
The direct 2-alkylation of oxazoles and thiazoles with ethers through cross-dehydrogenative coupling reaction using Co-containing mesoporous zeolite ETS-10 as the heterogeneous catalyst is described. The basic Co-containing mesoporous zeolite ETS-10 catalyst facilitates this cross-dehydrogenative coupling reaction through metal-base synergy catalytic principle.
alkanes via synergistic visible light-driven redox reaction and FeCl3 catalysis. This transformation involves C−H activation by a chlorine radical generated during the iron-promoted ligand-to-metal charge transfer process, triggering subsequent C−H pyrimidination. The substrates and catalysts are inexpensive and readily available, while the reaction conditions and procedures are simple without the need
Cu-Catalyzed Cross-Dehydrogenative Coupling Reactions of (Benzo)thiazoles with Cyclic Ethers
作者:Zengyang Xie、Yuping Cai、Hongwen Hu、Chen Lin、Juli Jiang、Zhaoxu Chen、Leyong Wang、Yi Pan
DOI:10.1021/ol4022113
日期:2013.9.6
Copper-catalyzed cross-dehydrogenative coupling (CDC) reactions of (benzo)thiazoles with cyclic ethers were developed under mild conditions. In particular, the formation of C-C bonds via the CDC reactions between non-benzo-fused azoles and ethers are reported for the first time. In addition, the acetals, known as the masked 2-thiazolecarboxaldehydes, could be successfully obtained by this CDC reaction. The preliminary mechanism and supportive DFT calculations are discussed as well.