Investigations of the hydrolysis reaction mechanism of organoaluminium compounds. 1H NMR spectroscopic studies on the R3Al/H2O reaction in polar solvents

A series of novel thiazolium halogenide ionic liquids were synthesized by using 4-methylthiazole or 4-methyl-5-thiazoleethanol and halohydrocarbons as materials. The compounds were characterized and analyzed by elemental analysis, 1H NMR and DSC.The solubilities of the ionic liquids in organic dissolvents were observed, meanwhile the conductivities and melting points were measured. The results show that these ionic liquids have high conductivity in water and have good solubility in traditional polar solvents, such as H2O, ethanol and acetonitrile. And the thiazolium halogenide are room temperature ionic liquids, due to their low melting points.

Download Full-text

Investigations on Terminalia Arjuna Fruits: Part 1- Isolation of Comounds from Petroleum Ether Fractions

Bangladesh Journal of Scientific and Industrial Research ◽

10.3329/bjsir.v43i1.863 ◽

1970 ◽

Vol 43 (1) ◽

pp. 123-130 ◽

Cited By ~ 3

Author(s):

M Zahurul Haque ◽

M Abdullah As Saki ◽

M Umar Ali ◽

M Yusuff Ali

Keyword(s):

Petroleum Ether ◽

Key Words ◽

1H Nmr ◽

13C Nmr ◽

Chromatographic Separation ◽

Spectroscopic Studies ◽

Biologically Active ◽

Terminalia Arjuna ◽

Pure Compounds ◽

Column Chromatographic

Arjun (Terminalia arjuna) is a source of many potent, biologically active compounds, planned all over Bangladesh. The chemical examinations of its fruits were taken up to isolate and identify active principles. For this purpose fresh fruits of Terminalia arjuna were extracted with rectified spirit. The extract was then triturated with petroleum ether (40-60°C), which was then subjected to column chromatographic separation followed by PTLC. Such separation led to the isolation of some new pure compounds, TA-1 to TA-5. The structures of compounds were characterized through spectroscopic studies (IR, 1H-NMR and 13C-NMR). Key words: Arjun, TA-1, TA-5, Spectroscopic studies DOI: 10.3329.bjsir.v43i1.863 Bangladesh J. Sci. Ind. Res. 43(1),123-130, 2008

Download Full-text

1H NMR and spectroscopic studies of biologically active yttrium (III)-flavonoid complexes

Main Group Chemistry ◽

10.1080/10241220802357139 ◽

2008 ◽

Vol 7 (2) ◽

pp. 133-145 ◽

Cited By ~ 10

Author(s):

Anees A. Ansari

Keyword(s):

1H Nmr ◽

Spectroscopic Studies ◽

Biologically Active

Download Full-text

Characterization of Reverse Micelles Formulated with the Ionic-Liquid-like Surfactant Bmim-AOT and Comparison with the Traditional Na-AOT: Dynamic Light Scattering, 1H NMR Spectroscopy, and Hydrolysis Reaction of Carbonate as a Probe

Langmuir ◽

10.1021/acs.langmuir.9b01083 ◽

2019 ◽

Vol 35 (39) ◽

pp. 12744-12753 ◽

Cited By ~ 3

Author(s):

Nahir Dib ◽

R. Dario Falcone ◽

Angel Acuña ◽

Luis García-Río

Keyword(s):

Ionic Liquid ◽

Light Scattering ◽

Nmr Spectroscopy ◽

Dynamic Light Scattering ◽

1H Nmr ◽

Reverse Micelles ◽

1H Nmr Spectroscopy ◽

Hydrolysis Reaction

Download Full-text

Synthesis and Spectroscopic Studies of New Palladium(II) Complexes of N-hydroxymethyl Saccharin (Sac-CH2OH) and Amines or Diaminas Ligands

Oriental Journal Of Chemistry ◽

10.13005/ojc/350121 ◽

2019 ◽

Vol 35 (1) ◽

pp. 186-192 ◽

Cited By ~ 1

Author(s):

Ahmed S. Al-Janabi ◽

Adnan A. Al-Dulaimi ◽

Hayfa M. Gergees ◽

Mohammed H. Saleh

Keyword(s):

1H Nmr ◽

Nmr Spectra ◽

Spectroscopic Studies ◽

Mixed Ligand ◽

1H Nmr Spectra ◽

Ethylene Diamine ◽

Mixed Ligand Complexes ◽

Conductivity Measurements

Treatment of the chelated palladium(II) complex, trans-[Pd(K2-Sac-CH2O)2].2H2O with one mole equivalent of the diammines (L-L), L-L = 2,2'-bipyridine (bipy),. ethylene diamine (en), 1,10-phenanthroline (phen), or N,N-dimethyl ethylene diammine (dmen) in EtOH solvent afforded mixed ligand complexes of the type [Pd(K1-Sac-CH2O)2(L-L)] in 82-93% yield. While treatment of trans-[Pd(K2-Sac-CH2O)2].2H2O with two mole equivalents of the monoamines (L), L=pyridine (py), 3-methylpyridine (3-mpy) or 3-aminopyridine (3-apy) in EtOH solvent gave trans-[Pd(K1-Sac-CH2O)2(L)2] complexes in 86-89% yield The prepared complexes were characterized by elemental CHN analysis, .conductivity measurements,. infrared and 1H nmr spectra.

Download Full-text