Oxidative Povarov Reaction via sp3 C–H Oxidation of N-Benzylanilines Induced by Catalytic Radical Cation Salt: Synthesis of 2,4-Diarylquinoline Derivatives
摘要:
Oxidative Povarov reaction of N-benzylanilines was realized under catalytic radical cation salt induced conditions. The mechanism studies revealed that a radical intermediate was involved in this catalytic oxidation. This method provides a new way to synthesize 2,4-diarylquinoline derivatives.
Iron-Catalyzed Nitrene Transfer Reaction of 4-Hydroxystilbenes with Aryl Azides: Synthesis of Imines via C═C Bond Cleavage
作者:Yi Peng、Yan-Hui Fan、Si-Yuan Li、Bin Li、Jing Xue、Qing-Hai Deng
DOI:10.1021/acs.orglett.9b03160
日期:2019.10.18
C═C bond breaking to access the C═N bond remains an underdeveloped area. A new protocol for C═C bond cleavage of alkenes under nonoxidative conditions to produce imines via an iron-catalyzed nitrene transfer reaction of 4-hydroxystilbenes with aryl azides is reported. The success of various sequential one-pot reactions reveals that the good compatibility of this method makes it very attractive for
Nickel(II)–N<sup>Λ</sup>N<sup>Λ</sup>O Pincer Type Complex-Catalyzed N-alkylation of Amines with Alcohols via the Hydrogen Autotransfer Reaction
作者:Gunasekaran Balamurugan、Rengan Ramesh、Jan Grzegorz Malecki
DOI:10.1021/acs.joc.0c00530
日期:2020.6.5
A highly sustainable catalytic protocol for the coupling of alcohols and amines for selective monoalkylated amines using Ni(II)–NΛNΛO pincer type complexes through the borrowing hydrogen methodology is described. An array of Ni(II) catalysts (1–3) was synthesized and characterized by various spectral and analytical methods. Furthermore, the distorted square planar geometry of the complexes (1 and 2)
A Diaminocyclopentadienone iron tricarbonyl complex has been applied in chemoselective hydrogen transfer reductions. This bifunctional iron complex demonstrated a broad applicability in mild conditions in various reactions, such as reduction of aldehydes over ketones, reductive alkylation of various functionalized amines with functionalized aldehydes and reduction of α,β-unsaturated ketones into the
A Novel Three-Component Reaction of Anilines, Formaldehyde and β-Diketones: Simple Synthesis of 3-Spirosubstituted 1,2,3,4-Tetrahydroquinolines
作者:Aliaksei Kadutskii、Nikolas Kozlov
DOI:10.1055/s-2006-956450
日期:——
A new three-component reaction of cyclic β-diketones, formaldehyde and substituted anilines is described. The reaction provides a simple synthetic method for the one-pot preparation of 3-spirosubstituted 1,2,3,4-tetrahydroquinolines containing different substituents at the N-atom. This reaction also gives the opportunity to unite in one molecule the 1,2,3,4-tetrahydroquinoline, cyclic β-dicarbonyl, 2-azaspiro and some other (e.g., benzylic, bicyclic, adamantyl) fragments.
本文介绍了一种由环 δ-二酮、甲醛和取代苯胺组成的新的三组分反应。该反应提供了一种简单的合成方法,可用于一锅制备在 N 原子上含有不同取代基的 3-巯基取代的 1,2,3,4-四氢喹啉。该反应还提供了将 1,2,3,4-四氢喹啉、环δ-二羰基、2-氮杂螺和一些其他(如苄基、双环、金刚烷基)片段结合在一个分子中的机会。
Novel amide derivatives and medicinal use thereof ugs
申请人:——
公开号:US20040138223A1
公开(公告)日:2004-07-15
The present invention relates to an amide derivative of the formula (1), having a C5a receptor antagonistic action
1
wherein each symbol is as defined in the specification.
The above-mentioned amide derivative, an optically active form thereof and a pharmaceutically acceptable salt thereof are promising as an agent for the treatment or prophylaxis of diseases or syndromes caused by inflammation caused by C5a [e.g., autoimmune diseases such as rheumatism, systemic lupus erythematosus and the like, sepsis, adult respiratory distress syndrome, chronic obstructive pulmonary disease, allergic diseases such as asthma and the like, atherosclerosis, cardiac infarction, brain infarction, psoriasis, Alzheimer's disease and serious organ injury (e.g., pneumonia, nephritis, hepatitis and pancreatitis and the like) due to activation of leukocytes caused by ischemia reperfusion, trauma, burn, surgical invasion and the like]. Moreover, they are useful as a therapeutic or prophylactic agent for the infectious diseases caused by bacteria and virus that invade via a C5a receptor.