A microwave-assisted acid and base co-catalyzed strategy shows very high efficiency in the tandem reaction for the conversion of styrylepoxides into [1,1′-biaryl]-3-carbaldehydes.
Cobalt-Catalyzed Biaryl Couplings via C–F Bond Activation in the Absence of Phosphine or NHC Ligands
作者:Juan Wei、Kun-Ming Liu、Xin-Fang Duan
DOI:10.1021/acs.joc.6b02354
日期:2017.2.3
Co-catalyzed biaryl coupling through C–F cleavage under phosphine or NHC-free conditions was described. A broad range of aryl fluorides including unactivated fluorides as well as those with sensitive functionalities could couple with various Ti(OEt)4-mediated aryl Grignard reagents with high selectivity under the catalysis of CoCl2/DMPU. Importantly, selective C–F bond activationcouplings between two types
Rearrangements of aryl-8-oxabicyclo[3.2.1]octenones: synthesis of novel biaryls and 1-aryl-3-furylpropanones
作者:John Mann、Philip D. Wilde、Mark W. Finch
DOI:10.1039/c39850001543
日期:——
The formation of 3-arylbenzaldehydes through rearrangement of 3-aryl-8-oxabicyclo[3.2.1]oct-2-en-7-ones is reported, together with various rearrangement reactions of 2-aryl-8-oxabicyclo[3.2.]oct-6-en-3-ones, and a novel approach to the natural product acamelin.