Metal-free transamidation of benzoylpyrrolidin-2-one and amines under aqueous conditions
作者:Devaneyan Joseph、Myeong Seong Park、Sunwoo Lee
DOI:10.1039/d1ob00967b
日期:——
in the presence of DTBP and TBAI to afford the transamidated products in good yields. The reactions were conducted underaqueousconditions and good functional group tolerance was achieved. Both aliphatic and aromatic primary amines displayed good activity under metal-free conditions. A radical reaction pathway is proposed.
Insertion of Benzene Rings into the Amide Bond: One-Step Synthesis of Acridines and Acridones from Aryl Amides
作者:Didier G. Pintori、Michael F. Greaney
DOI:10.1021/ol902568x
日期:2010.1.1
Insertion of benzene rings into the amide bond using the reactive intermediate benzyne is described. Aromatic amides undergo smooth insertion when treated with O-triflatophenyl silane benzyne precursors, producing versatile aminobenzophenone products in good to excellent yield. The process is entirely metal-free and has been exemplified on the synthesis of biologically active acridones and acridines
Amide and thioamide bands of benzanilide and thiobenzanilide in the vibrational spectra
作者:I. Petrov、O. Grupče
DOI:10.1016/0022-2860(84)80117-9
日期:1984.3
secondary amides and secondary thioamides, in the spectral region between 1600 and 1200 cm −1 two characteristic bands could be recognized (Amide II and Amide III for amides and B and C bands for thioamides). Our spectra of benzanilide, C 6 H 5 (CO)NHC 6 H 5 , and thiobenzanilide, C 6 H 5 (CS)NHC 6 H 5 , show that in this region there are, at least, four prominent bands which shift on deuteration. That
摘要 人们普遍认为,在仲酰胺和仲硫代酰胺中,在 1600 和 1200 cm -1 之间的光谱区域可以识别出两个特征带(酰胺 II 和酰胺 III 以及硫代酰胺的 B 和 C 带)。我们的苯甲酰苯胺 C 6 H 5 (CO)NHC 6 H 5 和硫代苯甲酰苯胺 C 6 H 5 (CS)NHC 6 H 5 的光谱表明,在该区域至少有四个突出的条带氘代的转变。这可能表明所有这些带都与酰胺和/或硫代酰胺基团的振动有关。还讨论了一些其他酰胺和硫代酰胺带。
One-Pot Synthesis of Strained Macrocyclic Pyridone Hexamers and Their High Selectivity toward Cu<sup>2+</sup> Recognition
作者:Changliang Ren、Jie Shen、Huaqiang Zeng
DOI:10.1021/acs.orglett.5b02780
日期:2015.12.18
The removal of Cu2+ ions is relevant to environmental pollution control and neurodegenerative disease treatment. A novel family of strained macrocyclic pyridone hexamers, which exhibit highly selective recognition of Cu2+ ions and reduce copper content in artificial seawater by 97% at a very low [host]:[CuCl2] molar ratio of 2:1, is documented.
Cu 2+离子的去除与环境污染控制和神经退行性疾病的治疗有关。记录了一个新的应变大环吡啶酮六聚体家族,该化合物在非常低的[主体]:[CuCl 2 ]摩尔比为2:1的情况下显示出对Cu 2+离子的高度选择性识别,并将人造海水中的铜含量降低了97%。
Visible‐light Induced Cerium‐catalyzed
<i>N</i>
‐Demethylation of
<i>N</i>
‐Methyl Amides under Air Conditions
A visible-light induced cerium-catalyzed N-demethylation of N-methyl amides under air atmosphere to the corresponding of N-demethylated amides is presented. Upon irradiation the excited states of [CeIVCln]2− are able to activate N-methyl amides. This reaction provides a methodology to cleave the C−N bond of amides under air conditions.
提出了可见光诱导的铈催化的N-甲基酰胺在空气气氛下的N-去甲基化反应为相应的N-去甲基化酰胺。在辐照时,[Ce IV Cl n ] 2−的激发态能够激活N-甲基酰胺。该反应提供了一种在空气条件下裂解酰胺 C-N 键的方法。