135-02-4Relevant articles and documents
Synthesis, characterization, crystal structures, Hirshfeld surface analysis, DFT computational studies and catalytic activity of novel oxovanadium and dioxomolybdenum complexes with ONO tridentate Schiff base ligand
Kargar, Hadi,Bazrafshan, Maryam,Fallah-Mehrjardi, Mehdi,Behjatmanesh-Ardakani, Reza,Rudbari, Hadi Amiri,Munawar, Khurram Shahzad,Ashfaq, Muhammad,Tahir, Muhammad Nawaz
, (2021)
For the first time, two new oxovanadium and dioxomolybdenum Schiff base complexes, VOL(OMe) and MoO2L, were synthesized through the reaction of a ONO tridentate Schiff base ligand (H2L) derived from the condensation of 5-bromosalicyl
Silica functionalized Cu(II) catalysed selective oxidation of benzyl alcohols using TEMPO and molecular oxygen as an oxidant
Sharma, Pankaj,Gupta, Monika,Gupta, Rajive,Gupta, Manjulla
, p. 1485 - 1489 (2015)
A general scheme for the oxidation of benzyl alcohols catalyzed by silica functionalized copper (II) has been designed. TEMPO, a free radical, assists this oxidation that was initiated by molecular oxygen which converts it to a primary oxidant. This catalytic combination i.e. SiO2-Cu(II) in presence of TEMPO and oxygen provides excellent results in terms of yields and reaction time. SiO2-Cu(II) was very well characterized by different spectroscopic techniques such as FTIR, XRD, TGA, XPS, EDAX, SEM, TEM and AAS and is recyclable upto five times which makes it economically beneficial. [Figure not available: see fulltext.]
Oxidation of Benzylic and Allylic Alcohols with Cobalt(III) Acetate in Acetic Acid in the Presence and Absence of Sodium Bromide
Hirano, Masao,Morimoto, Takashi,Itoh, Keiko
, p. 3749 - 3751 (1988)
Benzyl alcohol and its o-, m-, and p-substituted derivatives afforded fairly good yields of the corresponding benzaldehydes through a reaction with a Co(III)-NaBr system.With allylic alcohols, this system failed in a selective formation of unsaturated carbonyl compounds.In the latter cases, the products were effectively obtained by using a higher concentration of cobalt(III)acetate in the absence of NaBr.
Acid catalyzed synthesis of 2-(2-aminophenyl)quinazoline-4-amine and reaction with aromatic aldehydes
Marinho, Elina,Proen?a, M. Fernanda
, p. 6138 - 6143 (2016)
The hydrochloride salt of 2-(2-aminophenyl)quinazoline-4-amine, prepared from a quinazolino[3,4-a]quinazoline, was reacted with aromatic aldehydes under conventional heating or microwave irradiation, leading to high yields of tetracyclic dihydroquinazolines.
Synthesis, spectral characterization, SC-XRD, HSA, DFT and catalytic activity of a dioxidomolybdenum complex with aminosalicyl-hydrazone Schiff base ligand: An experimental and theoretical approach
Kargar, Hadi,Fallah-Mehrjardi, Mehdi,Behjatmanesh-Ardakani, Reza,Munawar, Khurram Shahzad,Ashfaq, Muhammad,Tahir, Muhammad Nawaz
, (2021)
A new dioxidomolybdenum(VI) complex has been successfully prepared by the reaction of an ONO donor Schiff base, derived by condensing 4-amino-2-hydroxybenzohydrazide and 3-methoxysalicylaldehyde, with MoO2(acac)2. The structures of s
Oxidation of benzyl alcohols to benzaldehydes in water catalyzed by a Cu(II) complex with a zwitterionic calix[4]arene ligand
Gao, Jun,Ren, Zhi-Gang,Lang, Jian-Ping
, p. 88 - 92 (2015)
Abstract A water-soluble cationic mononuclear copper(II) complex [Cu(II)L(H2O)]I2 (1, H4L = 5,11,17,23-tetrakis(trimethylammonium)-25,26,27,28-tetrahydroxycalix[4]arene) was employed as a catalyst in the oxidation of benzyl alcohols to benzaldehydes in water. In the presence of TEMPO and H2O2, complex 1 exhibited good catalytic activity towards primary benzyl alcohols with a less catalyst loading (0.25 mol%) and a lower temperature (60 °C). The isolated yields of the aldehydes achieved 63-98% within 12 h.
Synthesis, Structure, Biological Evaluation, and Catalysis of Two Pyrazole-Functionalized NHC–RuIIComplexes
Chen, Chao,Ni, Shengliang,Zheng, Qing,Yu, Meifang,Wang, Hangxiang
, p. 616 - 622 (2017)
Two ruthenium complexes, 3a and 3b, bearing pyrazole-functionalized N-heterocyclic carbenes (NHCs) were prepared, and their structures were characterized by X-ray diffraction analysis. Given their promising anticancer potential, we evaluated the cytotoxic
Novel oxovanadium and dioxomolybdenum complexes of tridentate ONO-donor Schiff base ligand: Synthesis, characterization, crystal structures, Hirshfeld surface analysis, DFT computational studies and catalytic activity for the selective oxidation of benzyl
Amiri Rudbari, Hadi,Ashfaq, Muhammad,Behjatmanesh-Ardakani, Reza,Fallah-Mehrjardi, Mehdi,Forootan, Pooran,Kargar, Hadi,Nawaz Tahir, Muhammad,Shahzad Munawar, Khurram
, (2021)
Two new oxovanadium and dioxomolybdenum Schiff base complexes, [VvO(L)(OCH3)(CH3OH)] and [MoVIO2(L)(CH2CH3OH)], were synthesized by treating an ONO-donor type Schiff base ligand
A frank synthesis of alkyl-aryl ethers from 2-halobenzaldehydes and aromatic olefins without transition metal co-catalyst and ligand
Kumar, Balagani Sathish,Negi, Arvind S.
, p. 2340 - 2344 (2015)
An efficient synthesis of alkyl ethers has been developed for o-deactivated aryl halides and 1-halotetralenes. The method shows good regioselectivity towards ortho substituted halides. Alkali metal carbonates (Li2CO3/Na2CO3/K2CO3/Cs2CO3) have been used without a transition metal co-catalyst and ligand. The method is simple, straight-forward and proceeds to afford products in good isolated yields. The method holds potential for future applications in organic synthesis.
Synthesis, characterization and application of γ-MnO2/graphene oxide for the selective aerobic oxidation of benzyl alcohols to corresponding carbonyl compounds
Kadam, Mahesh M.,Dhopte, Kiran B.,Jha, Neetu,Gaikar, Vilas G.,Nemade, Parag R.
, p. 1436 - 1442 (2016)
A facile low temperature approach was used to synthesize γ-MnO2 on the surface of graphene oxide (GO) through a simple wet precipitation method using MnSO4 as a precursor. X-ray diffraction analysis and Raman spectroscopy confirmed the formation of γ-phase MnO2 in the MnO2/GO nanocomposites. Transmission electron microscopy studies showed that γ-MnO2 exists as flower and needle structures in GO with an average size of approximately 15 nm. Inductively coupled plasma atomic emission spectroscopy studies confirmed a 62.5 wt% loading of γ-MnO2 in the GO nanocomposites. The γ-MnO2/GO catalyst shows good activity for the selective aerobic oxidation of benzyl alcohols to corresponding carbonyl compounds even when present in sub-stoichiometric amounts giving 91% yield over 3 h under mild reaction conditions. The catalyst showed high activity even after three cycles indicating good recyclability.
