5447-87-0Relevant articles and documents
Mechanistic studies on the reduction of 2-bromo-1-phenylethylidenemalononitrile by NADH models BNAH and AcrH2
Liu, You-Cheng,Li, Bin,Guo, Qing-Xiang
, p. 8429 - 8432 (1994)
Reduction of 2-bromo-1-phenylethylidenemalononitrile (BPM) by coenzyme NADH models BNPAH and AcrH2 to give 2-phenyl-1, 1-cyclopropanedicarbonitrile (PCN) and 1-phenylethylidenemalononitrile (PM), respectively, was rationalized in terms of a dir
One-pot oxidant-free dehydrogenation-Knoevenagel tandem reaction catalyzed by a recyclable magnetic base-metal bifunctional catalyst
Yuan, Xiaofeng,Wan, Zijuan,Ning, Jinfeng,Zhang, Qiang,Luo, Jun
, (2020/07/15)
A new base-metal bifunctional catalyst NH-Pd(0)@MNP was prepared via a facile procedure and fully characterized. The as-prepared catalyst was used as an efficient relay catalyst for the one-pot oxidant-free dehydrogenation-Knoevenagel condensation tandem reaction from benzyl alcohol in H2O under mild conditions and generated benzalmalononitriles with yield up to 96%. Meanwhile, the catalyst could be easily recovered from the reaction system by an external magnetic field, and is reusable with little loss of activity up to 6 runs (5%).
Tungstate-loaded triazine-based magnetic poly(Bis-imidazolium ionic liquid): An effective bi-functional catalyst for tandem selective oxidation/Knoevenagel condensation in water
Zohreh, Nasrin,Tavakolizadeh, Maryam,Hosseini, Seyed Hassan,Pourjavadi, Ali,Bennett, Craig
, p. 342 - 350 (2017/02/19)
A novel bi-functional polymeric catalyst was synthesized by immobilization of tungstate anions onto the nitrogen rich poly(ionic liquid)/magnetic nanocomposite. The resulting catalyst has two types of catalytic sites: (i) immobilized WO4 anions with bis-imidazolium ionic liquid cation for selective oxidation of alcohols and (ii) basic amine groups for Knoevenagel condensation between produced aldehyde and malononitrile. Due to the polymeric nature of the catalyst, large amounts of tungstate and basic nitrogen groups were presented on the solid surface which led to a decrease in the applied catalyst mass for catalytic reaction. High catalytic activity and excellent selectivity of catalyst in water medium make this protocol a green way for production of fine chemicals.