Chemical Research Letters, May 2021. In heterogeneous catalysis, catalysts provide a surface to which reactants bind in a process of adsorption. 298-12-4, Name is 2-Oxoacetic acid, molecular formula is C2H2O3, COA of Formula: https://www.ambeed.com/products/298-12-4.html, belongs to benzisoxazole compound, is a common compound. In a patnet, author is Chen, Cheng-yi, once mentioned the new application about 298-12-4.
A divergent and regioselective synthesis of either 3-substituted benzisoxazoles or 2-substituted benzoxazoles from readily accessible ortho-hydroxyaryl N-H ketimines is described. The reaction proceeds in two distinct pathways through a common N-Cl imine Intermediate: (a) N-O bond formation to form benzisoxazole under anhydrous conditions and (b) NaOCl mediated Beckmann-type rearrangement to form benzoxazole, respectively. The reaction path also depends on the electronic nature of the aromatic ring, with the electron-rich aromatic rings favoring the rearrangement and the electron-deficient rings favoring the N-O bond formation. A Beckmann-type rearrangement mechanism via net [1,2]-aryl migration for the formation of 2-substituted benzoxazole is proposed.
Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data. If a proposed mechanism predicts the wrong experimental rate law, however, the mechanism must be incorrect.Welcome to check out more blogs about 298-12-4, in my other articles. COA of Formula: https://www.ambeed.com/products/298-12-4.html.
Reference:
Benzisoxazole – Wikipedia,
,Benzisoxazole – an overview | ScienceDirect Topics