Mild Metal‐Free Tandem α‐Alkylation/Cyclization of
<i>N</i>
‐Benzyl Carbamates with Simple Olefins
作者:Heinrich Richter、Roland Fröhlich、Constantin‐Gabriel Daniliuc、Olga García Mancheño
DOI:10.1002/anie.201202379
日期:2012.8.20
Easy does it! The chemoselective oxidative α‐C(sp3)H alkylation/cyclization reaction of N‐benzyl carbamates using simple mono‐, di‐, and trisubstituted olefins provides functionalized N‐heterocycles such as oxazinones (see picture). A TEMPO oxoammonium salt serves as the oxidant, making it possible to carry out the reaction at low temperatures. Neither a metal catalyst nor preactivation in the α‐position
Synthesis of 3-Benzazepines by Metal-Free Oxidative C-H Bond Functionalization-Ring Expansion Tandem Reaction
作者:Andrea Gini、Julia Bamberger、Javier Luis-Barrera、Mercedes Zurro、Rubén Mas-Ballesté、José Alemán、Olga García Mancheño
DOI:10.1002/adsc.201600985
日期:2016.12.22
A metal‐free synthesis of biologically important benzazepines is achieved through a single synthetic operation involving an oxidative C–H bond functionalization and ring expansion with diazomethanes as key reagent. This represents a new, strong methodology for the straightforward construction of the seven‐ring N‐heterocyclic structures under mild conditions using a 2,2,6,6‐tetramethylpiperidine 1‐oxyl
[EN] PRMT5 INHIBITORS<br/>[FR] INHIBITEURS DE PRMT5
申请人:MERCK SHARP & DOHME
公开号:WO2021126728A1
公开(公告)日:2021-06-24
The present invention provides a compound of Formula (I) and the pharmaceutically acceptable salts, esters, and prodrugs thereof, which are PRMT5 inhibitors. Also provided are methods of making compounds of Formula I, pharmaceutical compositions comprising compounds of Formula I, and methods of using these compounds to treat cancer, sickle cell, and hereditary persistence of foetal hemoglobin (HPFH) mutations.
Mechanistic Investigations on the Reaction between Amines or Amides and an Alkylperoxy-λ<sup>3</sup>-iodane
作者:Takuya Sueda、Daisuke Kajishima、Satoru Goto
DOI:10.1021/jo0268005
日期:2003.4.1
A mechanism involving the intermediate formation of an amine radical cation by single-electron transfer is proposed for the oxidation of secondary amines with alkylperoxy-lambda(3)-iodane. On the other hand, the oxidation of acetamides probably proceeds by a radical process, which involves the direct hydrogen abstraction of the methylene group alpha to the nitrogen atom.
Electron Donor–Acceptor Complex-Initiated Photochemical Cyanation for the Preparation of α-Amino Nitriles
作者:Qing Xia、Yufei Li、Lan Cheng、Xin Liang、Chenlin Cao、Peng Dai、Hongping Deng、Weihua Zhang、Qingmin Wang
DOI:10.1021/acs.orglett.0c03703
日期:2020.12.18
An electron donor–acceptor complex-initiated α-cyanation of tertiaryamines has been described. The reaction protocol provides a novel method to synthesize various α-aminonitriles under mild conditions. The reaction can proceed smoothly without the presence of photocatalysts and transition metal catalysts, and either oxidants are unnecessary or O2 is the only oxidant. The practicality of this method