54459-74-4Relevant articles and documents
New chiral basic heterogeneous catalyst based on Csβ zeolite
Suslov, Evgeniy V.,Korchagina, Dina V.,Komarova, Nina I.,Volcho, Konstantin P.,Salakhutdinov, Nariman F.
, p. 202 - 204 (2006)
A new basic chiral catalyst Met-Csβ has been synthesised for preparing optically active products of the Michael reaction and tandem transformations by the interaction of starting achiral α,β-unsaturated carbonyl compounds with malononitrile.
Crown ether complex cation ionic liquids: Preparation and applications in organic reactions
Song, Yingying,Jing, Huanwang,Li, Bo,Bai, Dongsheng
experimental part, p. 8731 - 8738 (2011/09/16)
A series of crown ether complex cation ionic liquids (CECILs) were designed, synthesised and characterised by NMR spectroscopy, HRMS, thermogravimetric differential thermal analysis (TG-DTA) and elemental analysis. Their applications in various organic reactions were investigated: [15-C-5Na][OH], [15-C-5Na][OAc], [18-C-6K][OH] and [18-C-6K][OAc] (15-C-5=[15]crown-5; 18-C-6=[18]crown-6) efficiently catalysed the Michael addition of alkenes and relevant nucleophiles; [18-C-6K][OH] and [15-C-5Na][OH] effectively catalysed the Henry reaction of nitromethane and aromatic aldehydes; [18-C-6K][OH] has excellent catalytic efficiency for Knoevenagel condensation of aromatic aldehydes and malononitrile; PdCl2/[18-C-6K] 3[PO4]/K2CO3 efficaciously catalysed the Heck reaction of olefins and aromatic halides; [18-C-6K][BrO3] can be used as both oxidant and solvent in the oxidation reaction of aromatic alcohols. The CECIL catalysts [15-C-5Na][OH] (Michael addition) and [18-C-6K][OH] (Henry reaction) can be recycled and reused several times without obvious loss of activity and their recovery is very simple.
High surface area MgO as a highly effective heterogeneous base catalyst for michael addition and knoevenagel condensation reactions
Xu, Chunli,Bartley, Jonathan K.,Enache, Dan I.,Knight, David W.,Hutchings, Graham J.
, p. 3468 - 3476 (2007/10/03)
Magnesium oxide (MgO), obtained using a novel but simple procedure, was systematically investigated as a heterogeneous base catalyst for reactions taking place in the liquid phase, specifically the Michael addition and the Knoevenagel condensation. The ac
