Methanol Promoted Palladium‐Catalyzed Amine Formylation with CO2 and H2 by the Formation of HCOOCH3. Issue 22 (29th October 2018)

• Record Type: Journal Article
• Authors: Wang, Yanyan; Chen, Bingfeng; Liu, Shulin; Shen, Xiaojun; Li, Shaopeng; Yang, Youdi; Liu, Huizhen; Han, Buxing
• Is Part Of: ChemCatChem. Volume 10:Issue 22(2018)
• Page Start: 5124
• Page End: 5127
• Publication Date: 2018-10-29
• Subjects: formamide -- supported Pd catalyst -- solvent effect; Catalysis -- Periodicals; 541.39505
• DOI: 10.1002/cctc.201801404
• Languages: English
• ISSNs: 1867-3880

Abstract

Abstract: The N‐formylation reaction of amines is one of the most effective measures to make the best use of CO2, since the formamides have widespread applications in industry. Herein, we performed the N‐formylation reaction over Mg−Al layered double hydroxide (Mg−Al LDH) supported Pd catalyst (Pd/LDH) for the first time and studied the relation between the solvent and the mechanism. In this reaction, the methanol can greatly improve the yield of the desired product by forming the HCOOCH3 . The catalytic system is effective for various amines including cyclic and alkyl secondary amines. Under the optimized reaction condition, we gained 88.5 %–97.4 % yields of the formamides for various substrates. Abstract : Methanol is best : The N‐formylation reaction of amines with CO2 and H2 over Mg−Al layered double hydroxide (Mg−Al LDH) supported Pd catalyst (Pd/LDH) in various solvents was investigated. Among the solvents tested, methanol exhibits unique performance since it provides a new HCOOCH3 ‐mediated reaction pathway, which can greatly accelerate the reaction rate. This catalytic system is also effective for various amines including cyclic and alkyl secondary amines.