One of the major reasons for studying chemical kinetics is to use measurements of the macroscopic properties of a system, such as the rate of change in the concentration of reactants or products with time. 768-90-1, Name is 1-Bromoadamantane, formurla is C10H15Br. In a document, author is Zheng, Ling-Li, introducing its new discovery. Product Details of 768-90-1.
Pd/Cu bimetallic co-catalyzed direct 2-arylation of benzoxazole with aryl chloride
An efficient Palladium/Copper bimetallic co-catalyzed direct 2-arylation of benzoxazoles with aryl chlorides is presented. The Pd(OAc)(2)/Cul/NiXantphos-based catalyst enables the installation of various aryl and heteroaryl groups in good to excellent yields (75-99%). Preliminary mechanism investigation indicates that Pd/Nixantphos complex activates C-Cl bond of aryl chlorides via oxidative addition, and Cu/Nixantphos complex chelates with nitrogen atom to lower the pK(a) of the 2-H in benzoxazoles. (C) 2019 Elsevier Ltd. All rights reserved.
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