20172-42-3Relevant articles and documents
Asymmetric synthesis of (α-amino)phosphonic acid amphiphiles using chiral P-H spirophosphoranes
Dejugnat, Christophe,Etemad-Moghadam, Guita,Rico-Lattes, Isabelle
, p. 1858 - 1859 (2003)
Chiral P-H spirophosphoranes reacted with long-chain prochiral aldimines and, after selective hydrolysis, afforded (α-amino)phosphonic acid amphiphiles in both enantiopure forms.
Molybdenum Nitride Nanocatalyst Derived from Melamine and Polyoxometalate-based Hybrid for Oxidative Coupling of Amines to Imines with Air
Li, Yue,Xiao, Kang,Li, Jingjing,Jiang, Pingping,Jiang, Yuchen,Du, Shengyu,Leng, Yan
, p. 4317 - 4323 (2018/09/06)
Molybdenum nitride (Mo2N) is one of the most promising alternative catalysts for a wide range of Pt-catalyzed catalytic applications but is seldom investigated in oxidative coupling of amines to imines. A Mo2N-based nanocatalyst is successfully achieved by the hybridization of PMo12O403? (PMo)-paired ionic pyridine-4-carboxylic acid (PC) and melamine (Mel), followed by calcination in N2. Melamine acts as an outstanding carburization and nitridation reagent that can convert into carbon nitride, and meanwhile the released N element react with Mo species in PMo to form Mo2N. The obtained catalyst PC-PMo-Mel-800 exhibits high activity and remarkable stability for the oxidative coupling of amines to imines under solvent-free and atmospheric conditions. This is the first case of Mo2N-catalyzed oxidative coupling reaction catalyst. The strategy reported herein for fabricating Mo2N may provide a significant and interesting approach to design more transition metal nitrides for wide catalytic applications.
Ligand-Controlled Inversion of Diastereo- and Enantioselectivity in Silver-Catalyzed Azomethine Ylide-Imine Cycloaddition of Glycine Aldimino Esters with Imines
Yu, Bo,Yang, Ke-Fang,Bai, Xing-Feng,Cao, Jian,Zheng, Zhan-Jiang,Cui, Yu-Ming,Xu, Zheng,Li, Li,Xu, Li-Wen
supporting information, p. 2551 - 2554 (2018/05/17)
A highly diastereo- and enantioselective silver-catalyzed azomethine ylide-imine (AYI) cycloaddition reaction of glycine aldimino esters with imines was developed in which the Xing-Phos-controlled syn-selective or DTBM-Segphos-induced anti-selective AYI cycloaddition reaction could be applied to the synthesis of a variety of stereodivergent 1-alkyl-2,5-substituted imidazolidines with high yields and excellent enantioselectivities (up to 99% ee) as well as good diastereoselectivities (up to 99:1 dr) under mild reaction conditions.