Carbon Dioxide Based N-Formylation of Amines Catalyzed by Fluoride and Hydroxide Anions
作者:Martin Hulla、Felix D. Bobbink、Shoubhik Das、Paul J. Dyson
DOI:10.1002/cctc.201601027
日期:2016.11.8
We described herein a simple approach for N‐formylation with CO2 and hydrosilane reducing agents. Fluoride and hydroxide salts efficiently catalyzed the reaction, principally through activation of the hydrosilanes, which led to hydrosilane reactivities comparable to those of NaBH4/LiAlH4. Consequently, the N‐formylation of amines with CO2 could be achieved at room temperature and atmospheric pressure
We herein describe an efficient iron‐catalyzed selectiveN‐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