Practical and Scalable Synthesis of Borylated Heterocycles Using Bench-Stable Precursors of Metal-Free Lewis Pair Catalysts
作者:Arumugam Jayaraman、Luis C. Misal Castro、Frédéric-Georges Fontaine
DOI:10.1021/acs.oprd.8b00248
日期:2018.11.16
A practical and scalable metal-free catalytic method for the borylation and borylative dearomatization of heteroarenes has been developed. This synthetic method uses inexpensive and conveniently synthesizable bench-stable precatalysts of the form 1-NHR2-2-BF3-C6H4, commercially and synthetically accessible heteroarenes as substrates, and pinacolborane as the borylation reagent. The preparation of several
已开发出一种实用且可扩展的无杂芳烃的硼化和硼基脱芳香化的无金属催化方法。这种合成方法使用廉价且可方便合成的1-NHR 2 -2-BF 3 -C 6 H 4形式的台式稳定型预催化剂。,市售和合成途径可得到的杂芳烃作为底物,频哪醇硼烷作为硼化试剂。在无溶剂条件下,无需使用Schlenk技术或手套箱即可制备2和50 g规模的数个硼化杂环。使用这种经济高效的绿色方法还可以实现其中一种杂芳烃底物的公斤级硼化,这证明了我们的方法可以在精细化工行业中方便地实施的事实。
[EN] BASE METAL CATALYZED BORYLATION OF ARENES AND AROMMATIC HETEROCYCLES<br/>[FR] BORYLATION D'ARÈNES ET D'HÉTÉROCYCLES AROMATIQUES CATALYSÉE PAR UN MÉTAL DE BASE
申请人:UNIV PRINCETON
公开号:WO2015089119A1
公开(公告)日:2015-06-18
In one aspect, cobalt complexes are described herein. In some embodiments, such cobalt complexes employ bis(phosphine) or bis(imine) ligand and are operable as catalysts for borylation of arenes and aromatic heterocycles.
Metal-Free Borylation of Heteroarenes Using Ambiphilic Aminoboranes: On the Importance of Sterics in Frustrated Lewis Pair C–H Bond Activation
作者:Julien Légaré Lavergne、Arumugam Jayaraman、Luis C. Misal Castro、Étienne Rochette、Frédéric-Georges Fontaine
DOI:10.1021/jacs.7b08143
日期:2017.10.18
were synthesized, and their structural features were elucidated both in solution and in the solid state. The reactivity of these species for the borylation of heteroarenes was investigated and compared to previously reported (1-TMP-2-BH2-C6H4)2 (1; TMP = tetramethylpiperidyl) and (1-NMe2-2-BH2-C6H4)2 (4; NMe2 = dimethylamino). It was shown that 2 and 3 are more active catalysts for the borylation
[EN] COMPOUND HAVING KDM5 INHIBITORY ACTIVITY AND PHARMACEUTICAL USE THEREOF<br/>[FR] COMPOSÉ PRÉSENTANT UNE ACTIVITÉ INHIBITRICE DE KDM5 ET UTILISATION PHARMACEUTIQUE ASSOCIÉE
申请人:ONO PHARMACEUTICAL CO
公开号:WO2021010492A1
公开(公告)日:2021-01-21
The present invention provides KDM5 inhibitor. The compound disclosed herein represented by the general formula (Z): wherein all symbols have the same meanings as the definitions described in the specification; or a salt thereof is useful as a prophylactic and/or therapeutic agent for cancer, Huntington's disease, or Alzheimer's disease and the like.
BF3⋅Et2O‐catalyzed C2‐selective C−H borylation of indoles with bis(pinacolato)diboron was developed to afford indole‐2‐boronicacid pinacol esters. A variety of functional groups were tolerated, and other heteroarenes like pyrrole and benzo[b]thiophene were also suitable substrates. An electrophilic substitution mechanism was proposed based on the preliminary mechanisticstudies. This novel transformation utilizes