619-50-1Relevant articles and documents
Selective Complexation of Hydrazone Based Ketimine with 3d, 4d, and 5d Metals: Synthesis, Characterization, and Biological Activity
Ahmad,Taj,Tirmizi,Alelwani,Hajjar,Makki,Shah,Ali,Hassan,Tahir,Siddiq
, p. 142 - 147 (2019)
The hydrazone derived ketimine of dehydroacetic acid and its metal {Cu(II), Ni(II), Zn(II), Fe(III), Cd(II), Pd(II), La(III), Nd(III), Ce(III)} complexes are synthesized and characterized by IR, 1H and 13C NMR, and UV-Vis spectroscopy. DNA studies have been carried out for metal complexes by electronic absorption spectroscopy. It is determined that metal complexes bind to DNA through intercalation. The complexes of Cu(II), Zn(II) and Pd(II) demonstrate significant activity against HeLa cells (cervical cancer).
Kevill,Foss
, p. 2837 (1967)
Shain,Kirsch
, p. 5848 (1968)
Light-induced carboxylation of aryl derivatives with cooperative COF as an active photocatalyst and Ni(ii) co-catalyst
Chakrabortty, Pekham,Das, Anjan,Chowdhury, Arpita Hazra,Ghosh, Swarbhanu,Khan, Aslam,Islam, Sk. Manirul
, p. 4738 - 4745 (2021/03/22)
The photocatalytic carboxylation of aryl derivatives was demonstrated under CO2at atmospheric pressure using a mesoporous covalent organic framework (COF) as the active photocatalyst with triethylamine (TEA) as a sacrificial electron source under visible light. A yield of greater than 91% of the isolated product was achieved with 5 mg of catalyst. The reaction cycle is dependent on the use of the Ni(dmg)2co-catalyst and the sacrificial electron donor (TEA). The reaction does not occur in the absence of light (445 nm) even at elevated reaction temperature. We have also demonstrated that a yield of 32% of the isolated product could be obtained with the use of sunlight in the catalytic cycle. Additionally, this heterogeneous catalytic system was recyclable and reusable for several cycles.
Vitamin B1-catalyzed aerobic oxidative esterification of aromatic aldehydes with alcohols
Chu, Xue-Qiang,Ge, Danhua,Luo, Xin-Long,Xu, Pei,Yu, Zi-Lun
supporting information, p. 30937 - 30942 (2021/11/19)
A straightforward aerobic oxidative esterification of aryl aldehydes with alcohols has been developed for the synthesis of substituted esters by employing vitamin B1 as a cost-effective, metal-free, and eco-friendly NHC catalyst. Air is used as a green terminal oxidant. The reaction is a useful addition to the existing NHC-catalytic oxidative esterification.
Preparation method of methyl benzoate compound
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Paragraph 0019; 0043-0044, (2021/08/14)
A preparation method of a methyl benzoate compound comprises the step that the methyl benzoate compound is prepared by carrying out esterification reaction on a benzoic acid compound and methyl alcohol under the catalysis of dihalogen hydantoin, and the molar ratio of the benzoic acid compound to the dihalogen hydantoin to the methyl alcohol is 1: (0.01-0.4): (2-30). According to the preparation method, the methyl benzoate compound can be efficiently prepared under mild conditions, the operation is safe, no acid waste liquid exists, meanwhile, raw materials are easy to obtain, and the production cost is low.
