Iron-catalysed radical cyclization to synthesize germanium-substituted indolo[2,1-<i>a</i>]isoquinolin-6(5<i>H</i>)-ones and indolin-2-ones
作者:Yani Luo、Tian Tian、Yasushi Nishihara、Leiyang Lv、Zhiping Li
DOI:10.1039/d1cc03907e
日期:——
A simple and efficient iron-catalysed radical cyclization to synthesize germanium-substituted indolo[2,1-a]isoquinolin-6(5H)-ones and indolin-2-ones has been developed.
derivatives in cyclohexane and was assigned to the CT state by the observation of a substantial red shift with increasing solvent polarity or with increasing electron-withdrawing ability of the substituent. The CT emission energies were found to follow a linear relationship with the Hammett constant of the substituent and the value of the linear slope for 1-NBAs (-0.45 eV) was higher than that of 2-NBAs (-0
oxidative C–H bond amidation of anilides with dibenzenesulfonimides mediated by PhI(OAc)2 under metal-free conditions provided para-amidated anilides with high selectivity and moderate to good yields. The reaction proceeded under mild or neutral conditions and it has good air and moisture tolerance. The method represents a novel and facile strategy for the synthesis of arylamines.
<i>N</i>,<i>N</i>-Dialkyl-2-phenylindol-3-ylglyoxylamides. A New Class of Potent and Selective Ligands at the Peripheral Benzodiazepine Receptor
作者:Giampaolo Primofiore、Federico Da Settimo、Sabrina Taliani、Francesca Simorini、Maria Paola Patrizi、Ettore Novellino、Giovanni Greco、Enrico Abignente、Barbara Costa、Beatrice Chelli、Claudia Martini
DOI:10.1021/jm030973k
日期:2004.3.1
We report the synthesis and the affinity data at both the peripheral (PBR) and the central benzodiazepine receptors of a series of N,N-dialkyl-2-phenylindol-3-ylglyoxylamide derivatives III, designed as conformationally constrained analogues of 2-phenylindole-3-acetamides II such as FGIN-1-27. Most of the new compounds showed a high specificity and affinity for PBR, with K(i) in the nanomolar to subnanomolar
Palladium-Imidazolium<i>N</i>-Heterocyclic Carbene-Catalyzed Carbonylative Amidation With Boronic Acids, Aryl Diazonium Ions, and Ammonia
作者:Merritt B. Andrus、Yudao Ma、Chun Song、Qiang Chai、Changqin Ma
DOI:10.1055/s-2003-42478
日期:——
tetrafluoroborates have been coupled with arylboron compounds, carbon monoxide, and ammonia to give aryl amides in high yields. A saturated N-heterocyclic carbene (NHC) ligand, H 2 IPr was used with palladium(II) acetate to give the active catalyst. A mechanism is proposed for this novel four-component couplingreaction.
芳基重氮四氟硼酸盐已与芳基硼化合物、一氧化碳和氨偶联,以高收率得到芳基酰胺。将饱和的 N-杂环卡宾 (NHC) 配体 H 2 IPr 与乙酸钯 (II) 一起使用以得到活性催化剂。为这种新颖的四组分偶联反应提出了一种机制。