Mesoporous nickel hydroxyapatite nanocomposite for microwave-assisted Henry reaction
作者:N. Neelakandeswari、G. Sangami、P. Emayavaramban、R. Karvembu、N. Dharmaraj、Hak Yong Kim
DOI:10.1016/j.tetlet.2012.03.086
日期:2012.6
The utility of nickel hydroxyapatite nanocomposite (Ni-HAp) as a green catalyst for solvent free, microwave-assisted Henry reaction using nitromethane and a series of aromatic aldehydes as substrates is presented. The selected catalyst performed well to afford the respective nitrostyrenes which were quantified by gas chromatography equipped with a mass spectral detector (GC-MS). A few of the products were identified from the respective nuclear magnetic resonance (NMR) spectral data. (C) 2012 Elsevier Ltd. All rights reserved.
Pd‐Catalyzed Tandem Pathway for Stereoselective Synthesis of (<i>E</i>)‐1,3‐Enyne from <i>β</i>‐Nitroalkenes by Using a Sacrificial Directing Group
作者:Subal Mondal、Siba P. Midya、Suman Das、Soumya Mondal、Abu S. M. Islam、Pradyut Ghosh
DOI:10.1002/chem.202301637
日期:2023.11.2
Dancing hybridization: The first example of efficient and stereoselective (E)-1,3-enyne synthesis exclusively from alkene substrates is described. Inauguration of nitro group as a sacrificial directing group, formation of magical triple bond by promoting zero-order to third-order upgradation make this methodology atom and step efficient with sustainability.
跳舞杂交:描述了仅从烯烃底物有效且立体选择性 ( E )-1,3-烯炔合成的第一个例子。硝基作为牺牲导向基团的诞生,通过促进零级到三级升级形成神奇的三键,使该方法原子和步骤高效且可持续。