On April 7, 2021, Hoque, Emdadul Md; Hassan, Mirja Mahamudul Md; Chattopadhyay, Buddhadeb published an article.Product Details of 1073339-22-6 The title of the article was Remarkably Efficient Iridium Catalysts for Directed C(sp2)-H and C(sp3)-H Borylation of Diverse Classes of Substrates. And the article contained the following:
Here we describe the discovery of a new class of C-H borylation catalysts and their use for regioselective C-H borylation of aromatic, heteroaromatic, and aliphatic systems. The new catalysts have Ir-C(thienyl) or Ir-C(furyl) anionic ligands instead of the diamine-type neutral chelating ligands used in the standard C-H borylation conditions. It is reported that the employment of these newly discovered catalysts show excellent reactivity and ortho-selectivity for diverse classes of aromatic substrates with high isolated yields. Moreover, the catalysts proved to be efficient for a wide number of aliphatic substrates for selective C(sp3)-H bond borylations. Heterocyclic mols. are selectively borylated using the inherently elevated reactivity of the C-H bonds. A number of late-stage C-H functionalization have been described using the same catalysts. Furthermore, we show that one of the catalysts could be used even in open air for the C(sp2)-H and C(sp3)-H borylations enabling the method more general. Preliminary mechanistic studies suggest that the active catalytic intermediate is the Ir(bis)boryl complex, and the attached ligand acts as bidentate ligand. Collectively, this study underlines the discovery of new class of C-H borylation catalysts that should find wide application in the context of C-H functionalization chem. The experimental process involved the reaction of 2-(4-Methoxythiophen-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane(cas: 1073339-22-6).Product Details of 1073339-22-6
The Article related to directed ch borylation aromatic heterocyclic compound iridium cyclooctadiene catalyst, Organometallic and Organometalloidal Compounds: Boron Compounds and other aspects.Product Details of 1073339-22-6
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