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- Title
Cooperative Catalytic Activation of Si−H Bonds: CO<sub>2</sub>-Based Synthesis of Formamides from Amines and Hydrosilanes under Mild Conditions.
- Authors
Luo, Rongchang; Lin, Xiaowei; ChEN, Yaju; Zhang, Wuying; Zhou, Xiantai; Ji, Hongbing
- Abstract
A simple cooperative catalytic system was successfully developed for the solvent-free N-formylation of amines with CO2 and hydrosilanes under ambient conditions, which was composed of a Zn(salen) catalyst and quaternary ammonium salt. These commercially available binary components activated the Si−H bonds effectively, owing to the intermolecular synergistic effect between Lewis base and transition metal center (LB-TM), and subsequently facilitated the insertion of CO2 to form the active silyl formats, thereby leading to excellent catalytic performance at a low catalyst loading. Furthermore, the bifunctional Zn(salen) complexes, with two imidazolium-based ionic-liquid (IL) units at the 3,3′-position of salen ligand, acted as intramolecularly cooperative catalysts, and the solvent-regulated separation resulted in facile catalyst recycling and reuse.
- Subjects
FORMAMIDE; AMINES; ZINC catalysts; QUATERNARY ammonium salts; CARBON dioxide
- Publication
ChemSusChem, 2017, Vol 10, Issue 6, p1224
- ISSN
1864-5631
- Publication type
Article
- DOI
10.1002/cssc.201601490