Copper-catalyzed Borylation of Bromoaryl Triflates with Diborons: Chemoselective Replacement of an Ar–Br Bond

Copper‐Catalyzed B(dan)‐Installing Allylic Borylation of Allylic Phosphates

“…Although various R−B(dan) (R=alkyl, alkenyl, aryl and allyl) are directly accessible by the substitution, a representative problem awaiting solution is low α/γ‐selectivity in the allylic borylation of allylic halides (Scheme ), which should result from a radical pathway operative therein. One‐electron reduction of a carbon−halogen bond sets off the radical pathway, and therefore we envisaged that use of a one‐electron reduction‐resistant leaving group instead of halogen should be promising for regiocontrol. We report herein on the copper‐catalyzed γ‐selective B(dan)‐installing allylic borylation of allylic phosphates, which proceeds not through the radical pathway.…”

Acridine-based copper(i) PNP pincer complexes: catalysts for alkyne hydroboration and borylation of aryl halides

“…A number of methods have been established for the synthesis of arylboronates from aryl halides employing catalytic copper/NHC, 9 copper/phosphine, 10 and other copper-based systems. 11 In addition, various copper-catalysed reactions converting alkyl halides to alkylboronates have been reported.…”

Palladium‐Catalyzed Chemoselective Borylation of (Poly)halogenated Aryl Triflates and Their Application in Consecutive Reactions

“…Yoshida et al. reported the copper‐catalyzed borylation of bromoaryl triflates with Ar−Br chemoselectivity (two examples of B 2 Pin 2 ) [6a] . Recently, Noonan et al.…”