Anthranilamide (aam)-substituted diboron: palladium-catalyzed selective B(aam) transfer
作者:Shintaro Kamio、Ikuo Kageyuki、Itaru Osaka、Sayaka Hatano、Manabu Abe、Hiroto Yoshida
DOI:10.1039/c8cc05645e
日期:——
An unsymmetrical diboron bearing an anthranilamide (aam) substituent was synthesized and was converted into arylboranes via Pd-catalyzed selective B(aam) transfer.
Azaborininones: Synthesis and Structural Analysis of a Carbonyl-Containing Class of Azaborines
作者:Geraint H. M. Davies、Asma Mukhtar、Borna Saeednia、Fatemeh Sherafat、Christopher B. Kelly、Gary A. Molander
DOI:10.1021/acs.joc.7b00747
日期:2017.5.19
boronic acids is described. An inexpensive, common reagent, SiO2, was found to serve as both a fluorophile and desiccant to facilitate the annulation process across three different azaborininone platforms. Computational analysis of some of the cores synthesized in this study was undertaken to compare the azaborininones with the analogous carbon-based heterocyclic systems. Computationally derived pKa values
A simple, efficient and mild methodology for the synthesis of 1,3,2-benzodiazaborininones [R-B(aam)] from boronic acids and anthranilamides on ethyl acetate is described. A series of 1,3,2-benzodiazaborininones were prepared in moderate to excellent yields at room temperature without dehydrating agents, metal catalysts, corrosive acids or other additives. Meanwhile, a multi-gram scale reaction is also
Yale,H.L., Journal of Heterocyclic Chemistry, 1971, vol. 8, p. 193 - 204
作者:Yale,H.L.
DOI:——
日期:——
Anthranilamide: A Simple, Removable <i>ortho</i>-Directing Modifier for Arylboronic Acids Serving also as a Protecting Group in Cross-Coupling Reactions
Anthranilamide (AAM) serves as a bifunctional modifier on the boron atom in catalytic transformations of arylboronic acids. It makes boronyl groups unreactive in Suzuki-Miyaura coupling and promotes Ru-catalyzed ortho-silylation. Suzuki-Miyaura coupling of AAM-modified bromophenylboronic acids with tolylboronic acid gave 1,1'-biaryl-4-boronic acid bearing AAM on the boron atom, which subsequently underwent Ru-catalyzed ortho-silylation at the 3-position by virtue of the ortho-directing effect of the AAM group.