Du, Chongyang published the artcileZinc Powder Catalysed Formylation and Urealation of Amines Using CO2 as a C1 Building Block, Category: isoquinoline, the main research area is formamide preparation; secondary amine carbon dioxide formylation zinc catalyst; urea preparation; primary amine carbon dioxide urealation zinc catalyst.
The zinc powder catalyzed formylation and urealation of secondary amines e.g., N-methylaniline and primary aromatic amines RNH2 (R = Ph, 2,4,6-trimethylphenyl, cyclohexyl, etc.) with CO2 and (EtO)3SiH under solvent-free condition were reported. Using 2 mol% zinc powder as the catalyst, a series of secondary amines, both the aromatic ones and the aliphatic ones can be formylated into formamides e.g., N-methyl-N-phenylformamide. When primary aromatic amines were used as the substrates, the reactions produce urea derivatives RNHC(O)NHR. The electronic and steric effects from the substrates on the formylation and urealation reactions were observed and discussed. The recovery and reusability of zinc powder were investigated, showing that zinc powder can be reused in the formylation reaction without loss of catalytic activity. The anal. on the reactants/products mixture after filtering out the zinc powder showed that zinc concentration in the mixture is low to 1 ppm. The pathways for the formylation and urealation of amines with this catalytic system were also investigated and related to the different substrates.
Chinese Journal of Chemistry published new progress about Amines Role: RCT (Reactant), RACT (Reactant or Reagent). 5961-59-1 belongs to class isoquinoline, name is 4-Methoxy-N-methylaniline, and the molecular formula is C8H11NO, Category: isoquinoline.
Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem