Reference of 35857-89-7, Chemistry is the experimental science by definition. We want to make observations to prove hypothesis. For this purpose, we perform experiments in the lab. 35857-89-7, Name is 6-Chloropyridazine-3-carbonitrile,introducing its new discovery.
Iron-Catalyzed Selective N-Methylation and N-Formylation of Amines with CO2
We herein describe an efficient iron-catalyzed selective N-methylation and N-formylation of amines with CO2 and silane using mono-phosphine as ligand. With commercially available [CpFe(CO)2]2 as catalyst, Fe-catalyzed methylation of amines was achieved with triphenylphosphine as a ligand. Using tributylphosphine as a ligand, Fe-catalyzed formylation of amines was realized at a lower temperature. The method was successfully applied in the late-stage methylation and formylation of drug molecules containing amine moiety. (Figure presented.).
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Reference：
Pyridazine – Wikipedia,
Pyridazine | C4H4N940 – PubChem