Organic Fluorine Compounds. XXVII: Preparation of Acyl Fluorides with Anhydrous Hydrogen Fluoride. The General Use of the Method of Colson and Fredenhagen

Pd-catalyzed fluoro-carbonylation of aryl, vinyl, and heteroaryl iodides using 2-(difluoromethoxy)-5-nitropyridine

“…1a). Although the development of new applications for R-COFs and reactions that involve R-COFs have recently gained attention [21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37] , especially in the context of transition-metal catalysis, strategies for the synthesis of R-COFs remain somewhat limited [37][38][39][40][41][42][43][44][45][46][47][48][49][50][51][52][53] . Currently, the synthetic routes to R-COFs are categorized into two groups.…”

“…The first group, which involves the fluorination of carboxylic acids or their derivatives, including aldehydes via deoxyfluorinations, halogen-exchange reactions, or C-H activation reactions, is the central area of the traditional research (type I, cleavage 1 in Fig. 1b) [38][39][40][41][42][43][44][45][46][47][48][49] . The other group includes step-wise fluoro-carbonylation reactions of organic halides using a combination of toxic gaseous carbon monoxide (CO) [50][51][52] or more stable alternative sources of CO, and fluorinating reagents 53 (type II, cleavages 1 and 2 in Fig.…”