109417-72-3Relevant academic research and scientific papers
Aldol condensations catalysed by novel Mg-Al-O-t-Bu hydrotalcite
Choudary,Lakshmi Kantam,Kavita,Venkat Reddy,Koteswara Rao,Figueras
, p. 3555 - 3558 (1998)
A novel Mg-AI-O-t-Bu hyckotalcite prepared for the first time, catalyses condensation reactions selectively to aldols (3) at 0°C in quantitative yields.
Heterogeneous catalysis over a barium carboxylate framework compound: Synthesis, X-ray crystal structure and aldol condensation reaction
Saha, Debraj,Maity, Tanmoy,Sen, Rupam,Koner, Subratanath
, p. 63 - 70 (2012)
A new three-dimensional alkaline-earth metal-organic framework (MOF) compound, [Ba(pdc)]n (1) (H2pdc = pyridine-2,5- dicarboxylate), has been hydrothermally synthesized and structurally characterized by single crystal X-ray diffracti
A photoswitchable organocatalyst based on a catalyst-imprinted polymer containing azobenzene
Liu, Hua-Dong,Zheng, An-Xun,Gong, Cheng-Bin,Ma, Xue-Bing,Hon-Wah Lam, Michael,Chow, Cheuk-Fai,Tang, Qian
, p. 62539 - 62542 (2015)
An l-proline-catalyzed aldol reaction was photo-controlled using an l-proline-imprinted polymer containing azobenzene. Upon UV irradiation, azobenzene chromophores underwent trans → cis isomerization, thereby releasing l-proline to catalyze the aldol reac
Proline catalyzed aldol reactions in aqueous micelles: An environmentally friendly reaction system
Peng, Yi-Yuan,Ding, Qiu-Ping,Li, Zucheng,Wang, Peng George,Cheng, Jin-Pei
, p. 3871 - 3875 (2003)
The proline catalyzed aldol reactions of nitrobenzaldehydes with various ketones in aqueous anionic micelles were investigated. Both the selectivities and reaction yields were observed to be higher than those of the corresponding reactions in organic solv
A Mild Procedure for Enone Preparation Catalysed by Bovine Serum Albumin in a Green and Easily Available Medium
Ardanaz, Sebastián M.,Velez Rueda, Ana J.,Parisi, Gustavo,Iribarren, Adolfo M.,Iglesias, Luis E.
, p. 1750 - 1757 (2018)
Abstract: A simple and mild procedure to obtain α,β-unsaturated ketones from acetone and a set of benzaldehydes is described. The approach applies bovine serum albumin (BSA) catalysis and water or ethanol, this mild reaction medium contrasting with the strong reaction conditions of the classic aldol condensation. Except for the assayed nitrobenzaldehydes, high enone yields (88–97%) were attained. In addition to its mildness, further advantages of this procedure are the use of a green catalyst exhibiting an efficient reuse and the use of eco-friendly and cheap solvents. In order to gain a deeper understanding of the involved catalytic mechanism, computational experiments on BSA structural analysis and molecular docking were carried out.
Aldol condensation in PEG-400 catalyzed by recyclable l-proline supported on nano gold surface
Kumar, Ajeet,Dewan, Manika,De, Arnab,Saxena, Amit,Aerry, Swati,Mozumdar, Subho
, p. 603 - 607 (2013)
l-Proline supported on nano gold surface in PEG-400 catalyst system has been developed for use in the direct aldol condensation of acetone with aldehydes. Successful immobilization on surface of gold nanoparticles was confirmed using multiple analytical t
Controlled construction of metal-organic frameworks: Hydrothermal synthesis, X-ray structure, and heterogeneous catalytic study
Sen, Rupam,Saha, Debraj,Koner, Subratanath
, p. 5979 - 5986 (2012)
The role of pH in the formation of metal-organic frameworks (MOFs) has been studied for a series of magnesium-based carboxylate framework systems. Our investigations have revealed the formation of five different zero-dimensional (0D) to three-dimensional (3D) ordered frameworks from the same reaction mixture, merely by varying the pH of the medium. The compounds were synthesized by the hydrothermal method and characterized by single-crystal X-ray diffraction. Increase of the pH of the medium led to abstraction of the imine hydrogen from the ligand and a concomitant increase in the OH- ion concentration in the solution, facilitating the construction of higher dimensional framework compounds. A stepwise increase in pH resulted in a stepwise increase in the dimensionality of the network, ultimately leading to the formation of a 3D porous solid. A gas adsorption study of the 3D framework compound confirmed its microporosity with a BET surface area of approximately 450 m2 g-1. Notably, the 3D framework compound catalyzes aldol condensation reactions of various aromatic aldehydes with acetone under heterogeneous conditions. Copyright
Amine functionalized layered double hydroxide: A reusable catalyst for aldol condensation
Sahoo, Mitarani,Singha, Sudarshan,Parida
, p. 2503 - 2509 (2011)
Zn:Al layered double hydroxide-supported 3-aminopropyltriethoxysilane (APTES) and N-methyl 3-aminopropyltriethoxy silane (MAPTES) are found to be efficient, environmentally attractive and selective solid base catalysts for liquid phase aldol condensation
Cyclodextrin-based class I aldolase enzyme mimics to catalyze crossed aldol condensations
Yuan, De-Qi,Dong, Steven D.,Breslow, Ronald
, p. 7673 - 7676 (1998)
A variety of mono- and unsymmetrical bifunctional β-cyclodextrins have been developed as efficient mimics of class I aldolases, some of which show a large rate acceleration and substrate selectivity.
Functionalized ionic liquids catalyzed direct aldol reactions
Luo, Sanzhong,Mi, Xueling,Zhang, Long,Liu, Song,Xu, Hui,Cheng, Jin-Pei
, p. 1923 - 1930 (2007)
A series of functionalized ionic liquids (FILs) incorporated with chiral-pyrrolidine unit have been synthesized and tested as reusable organocatalysts for direct aldol reactions. FIL 1b in combination with acetic acid and water as additives could effectively catalyze direct aldol reactions of various ketone donors in high yields and the FIL catalyst was easily recycled and reused for six times with slight reduction in activity. Based on experimental observations as well as previous reports, we proposed that the reactions occurred via syn-enamine intermediate and the ionic-liquid moiety in the FIL provides some space shielding for the participating aldehyde acceptors that accounts for the modest enantioselectivities observed in the reactions.
