Zinc salt-catalyzed reduction of α-aryl imino esters, diketones and phenylacetylenes with water as hydrogen source

2021 ◽  
Vol 19 (16) ◽  
pp. 3601-3610
Author(s):  
Guoli Shen ◽  
Haojie Liu ◽  
Jingchao Chen ◽  
Zhenxiu He ◽  
Yongyun Zhou ◽  
...  
Keyword(s):  
Zinc Salt ◽  
Imino Esters

The zinc salt-catalyzed reduction of α-aryl imino esters, diketones and phenylacetylenes with water as hydrogen source and zinc as reductant was successfully conducted.

PROTECTIVE EFFECT OF SOME SALTS 2-AMINOETHANESULFONIC ACID IN AN EXPERIMENTAL MODEL OF DEGENERATIVE SPINAL CORD INJURY

2020 ◽  
pp. 41-47
Author(s):  
Semeleva E.V. ◽  
Blinova E.V. ◽  
Zaborovsky A.V. ◽  
Vasilkina O.V. ◽  
Shukurov A.S.
Keyword(s):  
Spinal Cord ◽  
Morphological Changes ◽  
Male Rats ◽  
Zinc Salt ◽  
Control Group ◽  
Morphological Studies ◽  
Cord Injury ◽  
The Central Nervous System ◽  
Acid Compound ◽  
Lateral Sclerosis

In this work, we studied the pharmacological activity of zinc and magnesium salts of 2-aminoethanesulfonic acid in white non-linear male rats with amyotrophic lateral sclerosis, which was modeled by neurotoxicantsimplication into the pelvic part of spinal cord. After the reproduction of the pathology in animals, the indices of motor activity were recorded in the Rotarod test, and morphological studies of spinal cord sections stained according to Nisl in the Belshovsky modification were carried out. It was shown that the magnesium salt of 2-aminoethanesulfonic acid (compound LHT-317) to a greater extent reduces the development of motor disorders in experimental animals compared with the control group on the 4th day of observation. The course of intravenous administration of the studied compounds of 2-aminoethanesulfonic acid did not inhibit morphological changes in the spinal cord that develop in degenerative-dystrophic pathology of the central nervous system: connections. Moreover, if, against the background of treatment with zinc salt, the total area of motor zones in animals of the experimental group exceeded that of control rats, then the number of motoneurons did not differ from the control.

Electroreductive Intramolecular Coupling of Aromatic β- and γ-Imino Esters:  A New Synthetic Method forN-Alkoxycarbonyl-2-aryl-3-ones andcis-2-Aryl-3-ols of Pyrrolidines and Piperidines

2004 ◽  
Vol 69 (22) ◽  
pp. 7710-7719 ◽  
Author(s):  
Naoki Kise ◽  
Kengo Ohya ◽  
Kie Arimoto ◽  
Yutaka Yamashita ◽  
Yuuki Hirano ◽  
...  
Keyword(s):  
Synthetic Method ◽  
Imino Esters

Confinement of Zinc Salt in Ultrathin Heterogeneous Film to Stabilize Zinc Metal Anode

Small ◽  
2021 ◽  
pp. 2100722
Author(s):  
Junya Cui ◽  
Zhenhua Li ◽  
Annan Xu ◽  
Jianbo Li ◽  
Mingfei Shao
Keyword(s):  
Zinc Salt ◽  
Metal Anode ◽  
Zinc Metal ◽  
Heterogeneous Film

Highly Enantioselective Transfer Hydrogenation of α-Imino Esters by a Phosphoric Acid.

ChemInform ◽  
2007 ◽  
Vol 38 (45) ◽  
Author(s):  
Qiang Kang ◽  
Zhuo-An Zhao ◽  
Shu-Li You
Keyword(s):  
Phosphoric Acid ◽  
Transfer Hydrogenation ◽  
Imino Esters

Pharmacological activity of ziacryl, a zinc salt of polyacrylic acid

2009 ◽  
Vol 43 (12) ◽  
pp. 661-664 ◽  
Author(s):  
K. A. Abzaeva ◽  
M. G. Voronkov ◽  
L. V. Zhilitskaya ◽  
D. A. Burovik ◽  
V. A. Makarov ◽  
...  
Keyword(s):  
Pharmacological Activity ◽  
Polyacrylic Acid ◽  
Zinc Salt

scholarly journals Synthesis of ZnO nanoparticles by a hybrid electrochemical-thermal method: influence of calcination temperature

2015 ◽  
Vol 50 (1) ◽  
pp. 21-28 ◽  
Author(s):  
F Hassan ◽  
MS Miran ◽  
HA Simol ◽  
MAB H Susan ◽  
MYA Mollah
Keyword(s):  
Calcination Temperature ◽  
Zno Nanoparticles ◽  
Zinc Salt ◽  
Thermal Method ◽  
Gravimetric Analysis ◽  
Zno Nps ◽  
X Ray ◽  
Calcination Temperatures ◽  
Ft Ir ◽  
Uv Visible

ZnO nanoparticles (NPs) with size less than 100 nm were successfully prepared by a hybrid electrochemical-thermal method using metallic zinc and NaHCO3 without the use of any zinc salt, template or surfactant. The NPs were characterized by Fourier transform infra-red (FT-IR) spectroscopy, UV-visible spectroscopy, photoluminescence spectroscopy (PL), thermo-gravimetric analysis (TGA), X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive X-ray (EDX) spectroscopy. UV-visible spectral analysis indicated that the particle size increased with increasing calcination temperature. The band gap (3.91-3.83 eV) was higher for synthesized ZnO NPs than their bulk counterparts (3.37 eV). The FT-IR spectra at different calcination temperatures showed the characteristic band for ZnO at 450 cm-1 to be prominent with increasing temperature due to the conversion of precursor into ZnO. The wurtzite hexagonal phase was confirmed by XRD analyses for ZnO NPs calcined at 700oC. The green photoluminescent emission from ZnO NPs at different calcination temperatures is considered to be originated from the oxygen vacancy or interstitial related defects in ZnO. SEM images clearly showed that the NPs are granular and of almost uniform size when calcined at higher temperatures. EDX spectra further confirmed the elemental composition and purity of ZnO obtained on calcination at 700oC. The NPs are well dispersed near or above calcination temperature of 700oC.Bangladesh J. Sci. Ind. Res. 50(1), 21-28, 2015

Synthesis and characterization of 1,8(11),15(18),22(25)-tetraglycosylated zinc(II) phthalocyanines

2010 ◽  
Vol 14 (06) ◽  
pp. 494-498 ◽  
Author(s):  
Zafar Iqbal ◽  
Alexey Lyubimtsev ◽  
Michael Hanack ◽  
Thomas Ziegler
Keyword(s):  
Zinc Salt ◽  
Synthesis And Characterization ◽  
Necessary Condition ◽  
Biological Applications

In continuation of our work on glycosylated phthalocyanines, a new series of 1,8(11),15(18),22(25)-tetraglycosylated zinc(II) phthalocyanines (PcZns) have been synthesized and characterized. 3-glycosylated phthalonitriles were synthesized through nitrite displacement in 3-nitrophthalonitrile with anomerically deprotected glycoses. The anomerically glycosylated phthalonitriles were then treated with hexamethyldisilazane (HMDS), trimethylsilyltriflate (TMSOTf) and zinc salt in DMF to form the corresponding acetyl-protected PcZns, followed by deprotection of acetyl groups by NaOMe in methanol/DMSO mixture. The formed unprotected tetraglycosylated PcZns are highly soluble in water, which is a necessary condition for potential biological applications.

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