Ruthenium-Catalyzed Carbon−Carbon Bond Formation via the Cleavage of an Unreactive Aryl Carbon−Nitrogen Bond in Aniline Derivatives with Organoboronates
作者:Satoshi Ueno、Naoto Chatani、Fumitoshi Kakiuchi
DOI:10.1021/ja0713431
日期:2007.5.1
refluxing toluene gave the corresponding phenylation product in 83% yield via aryl carbon−nitrogen bondcleavage. This reaction involves two notable features: (1) the coupling proceeds via the oxidative addition of an aryl carbon−nitrogen bond in anilines to the ruthenium complex, and (2) C−C bondformation takes place via transmetalation between the Ru−NR2 species and organoboronates.
Rapid, Homogenous, B-Alkyl Suzuki–Miyaura Cross-Coupling of Boronic Esters
作者:Matthew J. Bock、Scott. E. Denmark
DOI:10.1021/acs.joc.4c00089
日期:2024.11.15
anhydrous Suzuki–Miyaura cross-coupling of alkylboronic esters with aryl halides is described. Parallel experimentation revealed that the combination of AntPhos, an oxaphosphole ligand, neopentyldiol alkylboronic esters, and potassium trimethylsilanolate (TMSOK) enables successful cross-coupling. In general, reactions proceed in under 1 h with good yields and high linear/branched (l/b) selectivities. Crucially