Diverse Alkanones by Catalytic Carbon Insertion into the Formyl C−H Bond. Concise Access to the Natural Precursor of Achyrofuran
作者:Andrew J. Wommack、David C. Moebius、Austin L. Travis、Jason S. Kingsbury
DOI:10.1021/ol9010932
日期:2009.8.6
Over a century ago, the first reactions of diazomethane with aldehydes delivered methyl ketones. In the interim, aldehydes have been homologated with trimethylsilyldiazomethane, diazoacetates, and aryldiazomethanes, on rare occasion with catalysis. This work describes a mild procedure for convergent ketone assembly from nonstabilized diazoalkanes, including examples of chiral ketone synthesis with
Ruthenium-Catalyzed Cascade CH Functionalization of Phenylacetophenones
作者:Vaibhav P. Mehta、José-Antonio García-López、Michael F. Greaney
DOI:10.1002/anie.201309114
日期:2014.2.3
orthogonal cascade CH functionalization processes are described, based on ruthenium‐catalyzedCH alkenylation. 1‐Indanones, indeno indenes, and indeno furanones were accessed through cascade pathways by using arylacetophenones as substrates under conditions of catalytic [Ru(p‐cymene)Cl2}2] and stoichiometric Cu(OAc)2. Each transformation uses CH functionalization methods to form CC bonds sequentially
描述了基于钌催化的C H 烯基化的三个正交级联 C H 官能化过程。在催化[Ru( p-伞花烃)Cl 2 } 2 ]和化学计量的Cu(OAc) 2条件下,使用芳基苯乙酮作为底物,通过级联途径获得1-茚满酮、茚并茚和茚并呋喃酮。每个转化均使用CH功能化方法顺序形成CC键,茚并呋喃酮合成以CO键形成为终止步骤。这项工作展示了钌催化烯基化作为平台反应开发更复杂转化的能力,在单个操作中发生多个C - H官能化步骤以获得新型碳环结构。
[EN] NOVEL DIHYDROPYRIMIDIN-2(1H)-ONE COMPOUNDS AS S-NITROSOGLUTATHIONE REDUCTASE INHIBITORS<br/>[FR] NOUVEAUX COMPOSÉS DIHYDROPYRIMIDINE-2(1H)-ONES EN TANT QU'INHIBITEURS DE LA S-NITROSOGLUTATHION RÉDUCTASE
申请人:N30 PHARMACEUTICALS LLC
公开号:WO2011038204A1
公开(公告)日:2011-03-31
The present invention is directed to novel dihydropyrimidin-2(1H)-one compounds useful as S-nitrosoglutathione reductase (GSNOR) inhibitors, pharmaceutical compositions comprising such compounds, and methods of making and using the same.
Compounds of the formula
or a pharmaceutically acceptable salt thereof or a tautomer thereof, wherein A and B are as described herein, are useful for treating conditions afflicting mammals.
该公式化合物或其药用盐或其互变异构体,其中A和B如本文所述,可用于治疗影响哺乳动物的疾病。
<scp>Visible‐Light‐Promoted</scp>
[3 + 2] Cycloaddition of
<scp>
2
<i>H</i>
‐Azirines
</scp>
with Quinones: Access to Substituted Benzo[
<i>f</i>
]isoindole‐4,9‐diones
作者:Lijia Wang、Chuang Liu、Lei Li、Xin Wang、Ran Sun、Ming‐Dong Zhou、He Wang
DOI:10.1002/cjoc.202100728
日期:2022.3.15
A visible-light-promoteded [3 + 2] cycloadditionreaction of 2H-azirines with quinones has been developed under mild reaction conditions. The reaction provides a general and efficient strategy for the synthesis of the benzo[f]isoindole-4,9-diones scaffold via a tandem [3 + 2] cyclization/oxidative aromatization with molecular oxygen. Furthermore, preliminary studies for photocatalytic properties show
在温和的反应条件下,已开发出一种可见光促进的 2 H-氮丙啶与醌的 [3 + 2] 环加成反应。该反应为通过分子氧的串联[3 + 2]环化/氧化芳构化合成苯并[ f ]异吲哚-4,9-二酮骨架提供了一种通用且有效的策略。此外,对光催化性能的初步研究表明,苯并[ f ]isoindole-4,9-diones 3 可用作多种有机转化的光催化剂。