Comparative arylation reactions with pentaphenylbismuth and with triphenylbismuth carbonate
作者:Derek H. R. Barton、Jean-Claude Blazejewski、Brigitte Charpiot、David J. Lester、William B. Motherwell、M. Teresa Barros Papoula
DOI:10.1039/c39800000827
日期:——
Pentaphenylbismuth is a useful reagent for the specific ortho-phenylation of phenols under very mild conditions, a comparison of this reagent with triphenylbismuthcarbonate being drawn; arylationreactions of the carbonate have been extended to include nitro-compounds and amides.
Electrochemical Dearomatizing Methoxylation of Phenols and Naphthols: Synthetic and Computational Studies
作者:Ireneusz Tomczyk、Marcin Kalek
DOI:10.1002/chem.202303916
日期:2024.4.5
Phenols and naphthols are dearomatized to methoxycyclohexadienones under simple and robust electrochemical conditions, in a green way without chemical oxidants. The mechanism of the reaction is established using density functional theory calculations, which also explain the chemo- and regioselectivity for differently-substituted substrates.
benzocoumarin and steroid moieties. These derivatives were tested as pancreatic lipase inhibitors and it was found that most of the compounds exhibited inhibition of pancreatic lipase but the maximum inhibitory potential was shown by 4-arylestrones. All of the synthesized derivatives showed inhibitory values in the range of 0.82 ± 0.01–59.7 ± 3.12 μM. The biologicalactivity was also rationalized on the bases