Phenylboronicacid (2) reacts quantitatively by ball-milling in the solid state with o-phenylendiamine, 1,8-diaminonaphthalene, anthranilicacid, pyrocatechol, pyrogallol, pinacol, bicyclic cis-diols, mannitol, and inositol to form the five- or six-membered cyclic phenylboronic amides or esters. Catalysts or other auxiliaries are strictly excluded as they are not required and would have to be removed
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