53731-74-1Relevant articles and documents
The organocatalytic highly enantioselective Knoevenagel condensation: applications in the synthesis of various chiral amide derivatives
Ashokkumar, Veeramanoharan,Siva, Ayyanar,Sankar, Balakrishnan
, p. 1939 - 1955 (2019/04/30)
Abstract: In this work, efficient organocatalysts were designed, synthesized and successfully applied to the Knoevenagel condensation. In this reaction, different α-branched aldehydes were treated with various malonate compounds to give the desired produc
A green recyclable poly(4-vinylpyridine)-supported copper iodide nanoparticle catalyst for the chemoselective synthesis of pentaerythritol diacetals from aromatic aldehydes
Albadi, Jalal,Iravani, Nasir,Dehghan, Farzaneh,Shirinic, Farhad
, p. 610 - 611,2 (2020/09/16)
Poly(4-vinylpyridine)-supported copper(I) iodide nanoparticles have been used as an efficient, green recyclable catalyst for the chemoselective synthesis of pentaerythritol diacetals from aromatic aldehydes and pentaerythritol under solvent-free conditions. This catalyst was reused six times without any loss of its activity.
Acetalation of pentaerithritol catalyzed by an Al-pillared saponite
Kannan,Sreekumar,Gil,Vicente
experimental part, p. 1118 - 1122 (2012/06/18)
Acetalation of pentaerithritol has been carried out in the presence of an Al-pillared saponite. Several carbonyl compounds were used, including aldehydes and ketones. Yields between 72 and 93% were obtained in all cases, except in the case of veratraldehyde where the carbonyl group was blocked. The high conversion could be explained by diffusion effects of intermediates and electronic effects between the reactants in the transition state. The catalyst was found to be active after three cycles.