Iron-Catalyzed Hydroboration: Unlocking Reactivity through Ligand Modulation
作者:Maialen Espinal-Viguri、Callum R. Woof、Ruth L. Webster
DOI:10.1002/chem.201602818
日期:2016.8.8
hydroboration (HB) of alkenes and alkynes is reported. A simple change in ligand structure leads to an extensive change in catalyst activity. Reactions proceed efficiently over a wide range of challenging substrates including activated, unactivated and sterically encumbered motifs. Conditions are mild and do not require the use of reducing agents or other additives. Large excesses of borating reagent are not required
[EN] TRIAZOLOPYRIDINE INHIBITORS OF MYELOPEROXIDASE AND/OR EPX<br/>[FR] INHIBITEURS DE LA MYÉLOPEROXYDASE ET/OU DE L'EPX À BASE DE TRIAZOLOPYRIDINES
申请人:BRISTOL MYERS SQUIBB CO
公开号:WO2017161145A1
公开(公告)日:2017-09-21
The present invention provides compounds of Formula (I); wherein the substituents are each as defined in the specification, and compositions comprising any of such novel compounds. These compounds are myeloperoxidase (MPO) inhibitors and/or eosinophil peroxidase (EPX) inhibitors, and may be useful for for the treatment and/or prophylaxis of atherosclerosis, heart failure, chronic obstructive pulmonary disease (COPD), and related diseases.
Enantioselective γ-C(sp<sup>3</sup>)–H Activation of Alkyl Amines via Pd(II)/Pd(0) Catalysis
作者:Qian Shao、Qing-Feng Wu、Jian He、Jin-Quan Yu
DOI:10.1021/jacs.8b01094
日期:2018.4.25
Pd(II)-catalyzed enantioselective γ-C(sp3)-H cross-coupling of alkyl amines via desymmetrization and kinetic resolution has been realized for the first time using chiral acetyl-protected aminomethyl oxazoline ligands (APAO). A diverse range of aryl- and vinyl-boron reagents can be used as coupling partners. The chiral γ-arylated alkylamine products are further transformed into chiral 2-substituted 1,2,3,4-
Herein we describe an iron-catalyzed borylation of alkenyl and arylcarbamatesthrough the activation of a C–O bond. This protocol exhibits high efficiency, a broad substrate scope, and the late-stage borylation of biorelevant compounds, thus providing potential applications in medicinal chemistry. Moreover, this method enables orthogonal transformations of phenol derivatives and also offers good opportunities
在本文中,我们描述了通过C-O键的活化,铁催化的烯基和芳基氨基甲酸酯的硼酸酯化反应。该方案显示出高效率,广泛的底物范围以及生物相关化合物的后期硼化,因此在药物化学中提供了潜在的应用。而且,该方法能够使酚衍生物进行正交转化,并且还为合成多取代的芳烃提供了良好的机会。初步的机理研究表明,通过自由基途径的Fe II / Fe III催化循环可能与反应有关。
Synthesis of Alkenylboronates from <i>N</i>-Tosylhydrazones through Palladium-Catalyzed Carbene Migratory Insertion
作者:Yifan Ping、Rui Wang、Qianyue Wang、Taiwei Chang、Jingfeng Huo、Ming Lei、Jianbo Wang
DOI:10.1021/jacs.1c02331
日期:2021.7.7
The palladium-catalyzed oxidative borylation reaction of N-tosylhydrazones has been developed. The reaction features mild conditions, broad substratescope, and good functional group tolerance. It thus represents a highly efficient and practical method for the synthesis of di-, tri-, and tetrasubstituted alkenylboronates from readily available N-tosylhydrazones. One-pot Suzuki coupling and other transformations