Rhodium(III)-Catalyzed Cascade Redox-Neutral C-H Functionalization and Aromatization: Synthesis of Unsymmetrical<i>ortho</i>-Biphenols
作者:Zhiyong Hu、Guixia Liu
DOI:10.1002/adsc.201601296
日期:2017.5.17
An efficient rhodium(III)‐catalyzed coupling reaction of N‐aryloxyacetamides with 6‐diazo‐2‐cyclohexenones through a cascade redox‐neutral C–H functionalization and aromatization has been developed. This novel and scalable transformation provides a straightforward way to construct unsymmetrical ortho‐biphenols with broad substrate scope under mild and redox‐neutral conditions. The synthetic utility
A method for the catalytic enantioselective synthesis of 6-silylated 2-cyclohexenones
作者:Min Ge、E.J. Corey
DOI:10.1016/j.tetlet.2006.02.014
日期:2006.4
6-Silylated-2-cyclohexetioiies can be synthesized enantioselectively by hydrosilylation of the corresponding diazo-2-cyclolicxenone in the presence of a chiral Rh(II) catalyst. (c) 2006 Elsevier Ltd. All rights reserved.
Facile Synthesis of 2-Arylphenols via Palladium-Catalyzed Cross-Coupling of Aryl Iodides with 6-Diazo-2-cyclohexenones
2-Arylphenols were conveniently synthesized from aryl iodides and 6-diazo-2-cyclohexenones, In moderate to excellent yields, via tandem Pd-catalyzed cross-coupling/aromatization. The preliminary results for the corresponding enantioselective version showed that the coupling products could be generated In up to 72% ee.
A One-Pot Synthesis of Dibenzofurans from 6-Diazo-2-cyclohexenones
A novel and efficient protocol for the rapid construction of dibenzofuran motifs from 6-diazo-2-cyclohexenone and ortho-haloiodobenzene has been developed. The process involves one-pot Pd-catalyzed cross-coupling/aromatization and Cu-catalyzed Ullmann coupling.