Experimental and Computational Studies on the Directing Ability of Chalcogenoethers in Palladium‐Catalyzed Atroposelective C−H Olefination and Allylation
作者:Gang Liao、Tao Zhang、Liang Jin、Bing‐Jie Wang、Cheng‐Kai Xu、Yu Lan、Yu Zhao、Bing‐Feng Shi
DOI:10.1002/anie.202115221
日期:2022.3
of chalcogenoether motifs in Pd-catalyzed atroposelective C−Holefination and allylation are presented. The thioether motif was found to be a superior directing group compared to the corresponding ether (−OR) and selenoether in terms of reactivity and enantiocontrol. The selenoether unit (−SeMe) was used for the first time as a suitable directing group in asymmetric C−H activation.
Substituent effects of positive poles in aromatic substitution. III. Chlorination and bromination of sulfonium and selenonium salts
作者:Helmuth M. Gilow、R. Bradford Camp、Ernest C. Clifton
DOI:10.1021/jo01265a045
日期:1968.1
HOPE E. G.; KEMMITT T.; LEVASON W., J. CHEM. SOC. PERKIN TRANS.,(1987) N 4, 487-490
作者:HOPE E. G.、 KEMMITT T.、 LEVASON W.
DOI:——
日期:——
Solvent-Controlled Halo-Selective Selenylation of Aryl Halides Catalyzed by Cu(II) Supported on Al<sub>2</sub>O<sub>3</sub>. A General Protocol for the Synthesis of Unsymmetrical Organo Mono- and Bis-Selenides
作者:Tanmay Chatterjee、Brindaban C. Ranu
DOI:10.1021/jo401062k
日期:2013.7.19
Alumina-supported Cu(II) efficiently catalyzes selenylation of aryl iodides and aryl bromides by diaryl, dialkyl, and diheteroaryl diselenides in water and PEG-600, respectively, leading to a general route toward synthesis of unsymmetrical diaryl, aryl–alkyl, aryl–heteroaryl, and diheteroaryl selenides. A sequential reaction of bromoiodobenzene with one diaryl/diheteroaryl/dialkyl diselenide in water and another