Sarki, Naina published the artcileSimple RuCl3-catalyzed N-Methylation of Amines and Transfer Hydrogenation of Nitroarenes using Methanol, Synthetic Route of 10287-53-3, the publication is ChemCatChem (2021), 13(7), 1722-1729, database is CAplus.
Methanol is a potential hydrogen source and C1 synthon, which finds interesting applications in both chem. synthesis and energy technologies. The effective utilization of this simple alc. in organic synthesis is of central importance and attracts scientific interest. Herein, a clean and cost-competitive method with the use of methanol as both C1 synthon and H2 source for selective N-methylation of amines by employing relatively cheap RuCl3.xH2O as a ligand-free catalyst. This readily available catalyst tolerates various amines comprising electron-deficient and electron-donating groups and allows them to transform into corresponding N-methylated products in moderate to excellent yields. In addition, few marketed pharmaceutical agents (e.g., venlafaxine and imipramine) were also successfully synthesized via late-stage functionalization from readily available feedstock chems., highlighting synthetic value of this advanced N-methylation reaction. Using this platform, also attempted tandem reactions with selected nitroarenes to convert them into corresponding N-methylated amines using MeOH under H2-free conditions including transfer hydrogenation of nitroarenes-to-anilines and prepared drug mols. (e.g., benzocaine and butamben) as well as key pharmaceutical intermediates. Further enable one-shot selective and green syntheses of 1-methylbenzimidazole using ortho-phenylenediamine (OPDA) and methanol as coupling partners.
ChemCatChem published new progress about 10287-53-3. 10287-53-3 belongs to esters-buliding-blocks, auxiliary class Amine,Benzene,Ester, name is Ethyl 4-dimethylaminobenzoate, and the molecular formula is C11H15NO2, Synthetic Route of 10287-53-3.
Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics