Synergistic Visible-Light Photoredox/Nickel-Catalyzed Synthesis of Aliphatic Ketones via N–C Cleavage of Imides
作者:Javad Amani、Rauful Alam、Shorouk Badir、Gary A. Molander
DOI:10.1021/acs.orglett.7b00989
日期:2017.5.5
An electrophilic, imide-based, visible-light-promoted photoredox/Ni-catalyzed cross-coupling reaction for the synthesis of aliphatic ketones has been developed. This protocol proceeds through N–C(O) bond activation, made possible through the lower activation energy for metal insertion into this bond due to delocalization of the lone pair of electrons on the nitrogen by electron-withdrawing groups.
Synergistic Activation of Amides and Hydrocarbons for Direct C(sp
<sup>3</sup>
)–H Acylation Enabled by Metallaphotoredox Catalysis
作者:Geun Seok Lee、Joonghee Won、Seulhui Choi、Mu‐Hyun Baik、Soon Hyeok Hong
DOI:10.1002/anie.202004441
日期:2020.9.21
amides as stable and readily accessible acyl surrogates. N‐acylsuccinimides served as efficient acyl reagents for the streamlined synthesis of synthetically useful ketones from simple C(sp3)−H substrates. Detailed mechanistic investigations using both computational and experimental mechanistic studies were performed to construct a detailed and complete catalytic cycle. The origin of the superior reactivity
PYRROLOPYRIDINE RETINOIC ACID RECEPTOR-RELATED ORPHAN RECEPTOR MODULATORS AND USES THEREOF
申请人:INNOV17 LLC
公开号:US20170298060A1
公开(公告)日:2017-10-19
Provided herein are compounds of the formula (I):
as well as pharmaceutically acceptable salts thereof, wherein the substituents are as those disclosed in the specification. These compounds, and the pharmaceutical compositions containing them, are useful for the treatment of Retinoic Acid Receptor-Related Orphan Receptor regulated diseases and disorders.
oxidative C(sp3 )-H amidation for the synthesis of β -lactams using t BuOO t Bu. This method is based on Kharasch-Sosnovsky amidation and does not require prefunctionalization of C(sp3 )-Hbonds or the installation of a directing group, thereby allowing for the straightforward synthesis of β -lactams. Our intramolecular functionalization protocol can be extended to diverse benzylicC(sp3 )-Hbonds and
β-内酰胺由于在天然产物和药物中普遍存在而成为重要的结构基序。我们在此报告了使用t BuOO t Bu合成β-内酰胺的Cu催化的分子内氧化C(sp 3)-H酰胺化反应。该方法基于Kharasch-Sosnovsky酰胺化,不需要C(sp 3)-H键的预功能化或定向基团的安装,从而可以直接合成β-内酰胺。我们的分子内功能化协议可以扩展到各种苄基C(sp 3)-H键,并显示出色的官能团耐受性。
The direct functionalization of inert sp3 CH bonds is limited to a few bond types. Although the activation of sp3 CH bonds can be accomplished under mild conditions using palladium catalysts, the subsequent functionalization is not trivial due to the high energy required to convert palladium(II) to palladium(IV). We have systematically studied the palladium oxidation using computation‐guided experiments