An article Catalytic C-H/C-F Coupling of Azoles and Acyl Fluorides WOS:000471036800009 published article about FRIEDEL-CRAFTS REACTIONS; ORGANOZINC REAGENTS; HETEROARENES; ACYLATION; AMIDES; FUNCTIONALIZATION; ACTIVATION; ANHYDRIDES; THIAZOLES; OXAZOLES in [Ogiwara, Yohei; Iino, Yurika; Sakai, Norio] Tokyo Univ Sci, Fac Sci & Technol, Dept Pure & Appl Chem, Noda, Chiba 788510 2, Japan in 2019, Cited 44. Quality Control of Benzoic anhydride. The Name is Benzoic anhydride. Through research, I have a further understanding and discovery of 93-97-0
A method for the palladium/copper-catalyzed direct acylation of azoles with acyl fluorides is described. This study reports the first examples of acyl fluorides being used as acylation reagents in transition-metal-catalyzed aromatic C-H bond functionalization reactions. Depending on the reaction temperature, decarbonylative coupling may also occur. Mechanistic studies suggest that the cleavage of the aromatic C-H bond, promoted by a copper-phosphine species, is not the rate-limiting step of this acylation.
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Reference:
Isothiazole – Wikipedia,
,Isothiazole – ScienceDirect.com