New discoveries in chemical research and development in 2021. Redox catalysis has been broadly utilized in electrochemical synthesis due to its kinetic advantages over direct electrolysis. 319-03-9, Name is 5-Fluoroisobenzofuran-1,3-dione, molecular formula is C8H3FO3. In an article, author is Yao, Zhenyu,once mentioned of 319-03-9, COA of Formula: https://www.ambeed.com/products/319-03-9.html.
As balanced electron-rich P,C-chelating ligands, phosphine-phosphonium-ylides are considered for their ability to in situ promote palladium-catalysed direct C(sp(2))-H arylation. Using methyl phosphonium salts of 2,2′-bis(diphenylphosphino)-1,1′-binaphtyl (methyl-BINAPIUM) as ylide precursors under optimized reaction conditions, arylation of benzoxazole was found to proceed in moderate to high yield to give functional 2-aryl benzoxazoles. A strong anion effect of the non-salt free ylide was evidenced (TfO > I > PF6 approximate to salt-free). This first example of phosphonium ylides as ligands in catalytic C-H activation extends the prospect of their general implementation in homogeneous transition metal catalysis. (C) 2020 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. Published by Elsevier B.V. All rights reserved.
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Reference:
Benzoxazole – Wikipedia,
,Benzoxazole | C7H5NO – PubChem