本文中,我们通过配体使能的Au I / Au III催化与金配合物的特质π活化模式的相互作用揭示了金的烯烃1,2-二芳基化反应。与经典的基于迁移插入的方法进行1,2-二芳基化不同,本方法不仅规避了直接Ar-Ar'偶联和Heck型副产物的形成,而且更有趣地证明了其反应性和选择性与先前已知的互补金属催化(Pd,Ni或Cu)。对机理进行详细研究的结果表明,由于芳基烯烃具有非清白的性质,芳基碘化物向Au I络合物的氧化加成是限速步骤。
作者:Chetan C. Chintawar、Amit K. Yadav、Nitin T. Patil
DOI:10.1002/anie.202002141
日期:2020.7.13
Herein, we disclose the gold‐catalyzed 1,2‐diarylation of alkenes through the interplay of ligand‐enabled AuI/AuIII catalysis with the idiosyncratic π‐activation mode of gold complexes. Unlike the classical migratory‐insertion‐based approach to 1,2‐diarylation, the present approach not only circumvents the formation of direct Ar−Ar′ coupling and Heck‐type side products but more intriguingly demonstrates
本文中,我们通过配体使能的Au I / Au III催化与金配合物的特质π活化模式的相互作用揭示了金的烯烃1,2-二芳基化反应。与经典的基于迁移插入的方法进行1,2-二芳基化不同,本方法不仅规避了直接Ar-Ar'偶联和Heck型副产物的形成,而且更有趣地证明了其反应性和选择性与先前已知的互补金属催化(Pd,Ni或Cu)。对机理进行详细研究的结果表明,由于芳基烯烃具有非清白的性质,芳基碘化物向Au I络合物的氧化加成是限速步骤。
[EN] PIPERIDINE DERIVATIVES AND THEIR USE FOR THE TREATMENT OF METABOLIC DISORDERS<br/>[FR] DÉRIVÉS DE PIPÉRIDINE ET LEUR UTILISATION POUR LE TRAITEMENT DE TROUBLES MÉTABOLIQUES
申请人:BOEHRINGER INGELHEIM INT
公开号:WO2012001107A1
公开(公告)日:2012-01-05
The invention relates to new piperidine derivatives of the formula (I) to their use as medicaments, to methods for their therapeutic use and to pharmaceutical compositions containing them.
biology and drug development in recent years. Here, we report the development of a radical fluorosulfonylation of alkenes/intramolecular arylation cascade for the construction of chromanes with sulfonyl fluoride groups attached. The radical 1,2-fluorosulfonyl arylation reactions proceed well in both endo and exocyclization fashions, allowing for further variation of the distance between the chromane core