A regioselective deuteration method for a wide variety of aromatic compounds using the halogen–deuterium exchange reaction initiated by Bu3SnH using THF-d8 as the deuterium source was developed.
开发了一种区域选择性氘化方法,该方法通过使用THF- d 8作为氘源,通过Bu 3 SnH引发的卤素-氘交换反应,对多种芳香族化合物进行区域选择性氘化。
Two derivatives of phenylpyridyl-fused boroles with contrasting electronic properties: decreasing and enhancing the electron accepting ability
作者:Jiang He、Florian Rauch、Ivo Krummenacher、Holger Braunschweig、Maik Finze、Todd B. Marder
DOI:10.1039/d0dt03619f
日期:——
Two derivatives of phenylpyridyl-fused boroles were prepared via functionalization of the pyridyl groups, namely to an electron-rich dihydropyridine moiety (compound 1) and an electron-deficient N-methylpyridinium cation (compound 2). Due to strong conjugation between the dihydropyridine moiety and the boron atom, the reduction potential of compound 1 shifts cathodically. In contrast, compound 2 exhibits
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