Suzuki–Miyaura Cross-Coupling of Potassium Trifluoro(N-methylheteroaryl)borates with Aryl and Heteroaryl Halides
摘要:
The synthesis of potassium trifluoro(N-methylheteroaryl)borates and their use in cross-coupling reactions with various aryl and heteroaryl halides to construct N-methyl heteroaryl-substituted aromatic and heteroaromatic compounds are reported.
Brønsted Acid‐Catalyzed Direct C(
<i>sp</i>
<sup>2</sup>
)−H Heteroarylation Enabling the Synthesis of Structurally Diverse Biaryl Derivatives
作者:Shuo Yuan、Bin Yu、Hong‐Min Liu
DOI:10.1002/adsc.201801226
日期:2019.1.11
that enables the synthesis of biaryl fragments (70 examples) in moderate to excellent yields (up to 99% yield), which was also performed at a gram scale and successfully applied to the privileged quinazoline scaffolds of the first‐generation epidermal growth factor receptor (EGFR) inhibitors Gefitinib and Erlotinib, offering rapid access to a series of quinazoline‐basedbiarylcompounds. Additionally
Manganese-Catalyzed Regioselective Dehydrogenative C- versus N-Alkylation Enabled by a Solvent Switch: Experiment and Computation
作者:Jannik C. Borghs、Viktoriia Zubar、Luis Miguel Azofra、Jan Sklyaruk、Magnus Rueping
DOI:10.1021/acs.orglett.0c01270
日期:2020.6.5
base metal-catalyzed regioselective dehydrogenative alkylation of indolines using readily available alcohols as the alkylating reagent is reported. A single air- and moisture-stable manganese catalyst provides access to either C3- or N-alkylated indoles depending on the solvent used. Mechanistic studies indicate that the reaction takes place through a combined acceptorless dehydrogenation and hydrogen
Based on the mechanism of action, novel scaffolds as Topo Iinhibitors bearing indole and sophoridinine were designed. Preliminary docking study revealed that some molecules among the designed series possessed promising Topo Iinhibitor properties. Subsequently, thirty new compounds were synthesized and characterized by 1H NMR, 13C NMR, and Mass spectral analyses. The compounds were then screened for
Brønsted Acid-Catalyzed Decarboxylative Redox Amination: Formation of <i>N</i>-Alkylindoles from Azomethine Ylides by Isomerization
作者:Hui Mao、Sichang Wang、Peng Yu、Huiqing Lv、Runsheng Xu、Yuanjiang Pan
DOI:10.1021/jo102218v
日期:2011.2.18
decarboxylative redox amination involving aldehydes with 2-carboxyindoline for the synthesis of N-alkylindoles is described. The decarboxylative condensations of aldehydes with 2-carboxyindoline produce azomethine ylides in situ, which then transform into N-alkylindoles by isomerization.
Tunable Hydride Transfer in the Redox Amination of Indoline with Aldehyde: An Attractive Intramolecular Hydrogen-Bond Effect
作者:Hui Mao、Runsheng Xu、Jieping Wan、Zhengyang Jiang、Cuirong Sun、Yuanjiang Pan
DOI:10.1002/chem.201001896
日期:2010.12.3
Hydride hijacked by “hydrogen”! N‐Alkylindoles and N‐alkylindolines were obtained in the redox amination of indoline with aldehyde, which was tuned by a hydrogen‐bond effect. Salicylaldehyde gave the indoline‐type product via intermolecular hydride transfer, while other aromatic aldehydes gave the indole‐type product via intramolecular hydride transfer.