C(sp<sup>2</sup>)–H Borylation of Fluorinated Arenes Using an Air-Stable Cobalt Precatalyst: Electronically Enhanced Site Selectivity Enables Synthetic Opportunities
作者:Jennifer V. Obligacion、Máté J. Bezdek、Paul J. Chirik
DOI:10.1021/jacs.6b13346
日期:2017.2.22
Cobalt catalysts with electronically enhanced site selectivity have been developed, as evidenced by the high ortho-to-fluorine selectivity observed in the C(sp2)-H borylation of fluorinated arenes. Both the air-sensitive cobalt(III) dihydride boryl 4-Me-(iPrPNP)Co(H)2BPin (1) and the air-stable cobalt(II) bis(pivalate) 4-Me-(iPrPNP)Co(O2CtBu)2 (2) compounds were effective and exhibited broad functional
Ligand-Enabled, Iridium-Catalyzed <i>ortho</i>-Borylation of Fluoroarenes
作者:Olena Kuleshova、Sobi Asako、Laurean Ilies
DOI:10.1021/acscatal.1c01206
日期:2021.5.21
borylation of a stoichiometric amount of a fluoroarene with high ortho-selectivity and tolerance of functional groups such as bromide, chloride, ester, ketone, amine, and in situ-borylated hydroxyl. Complex drug molecules such as haloperidol can be selectively borylated ortho to the F atom. The terpyridine ligand undergoes rollover cyclometalation to produce an N,N,C-coordinated iridium complex, which may
[EN] NITROGEN-CONTAINING HETEROCYCLIC DERIVATIVE, AND COMPOSITION AND PHARMACEUTICAL USE THEREOF<br/>[FR] DÉRIVÉ HÉTÉROCYCLIQUE CONTENANT DE L'AZOTE, COMPOSITION ET UTILISATION PHARMACEUTIQUE DE CELUI-CI<br/>[ZH] 一种含氮杂环衍生物及其组合物和药学上的应用