Synthesis and characterization of bispyrrolidine derivatives of H2@C60: differentiation of isomers using 1H NMR spectroscopy of endohedral H2

2011 ◽  
Vol 47 (8) ◽  
pp. 2282-2284 ◽  
Author(s):  
Yongjun Li ◽  
Xuegong Lei ◽  
Ronald G. Lawler ◽  
Yasujiro Murata ◽  
Koichi Komatsu ◽  
...  
Keyword(s):  
Nmr Spectroscopy ◽  
1H Nmr ◽  
1H Nmr Spectroscopy ◽  
Synthesis And Characterization ◽  
Derivatives Of

scholarly journals Synthesis and characterization of some heterocyclic including oxazoles,Thiazoles, Pyridazines, phthalizines and Pyrazoles with evaluating of biological activity.

2013 ◽  
Vol 10 (3) ◽  
pp. 818-827
Author(s):  
Baghdad Science Journal
Keyword(s):  
Acetic Acid ◽  
Biological Activity ◽  
Nmr Spectroscopy ◽  
1H Nmr ◽  
1H Nmr Spectroscopy ◽  
Acid Hydrazide ◽  
Synthesis And Characterization ◽  
Ft Ir ◽  
New Compounds

A series of new compounds including p-bromo methyl pheno acetate [2]. N-( aminocarbonyl)–p-bromo pheno acetamide [3] , N-( aminothioyl) -p-bromo phenoacetyl amide [4], N-[4-(p-di phenyl)-1,3-oxazol-2-yl]-p-bromopheno acetamide [5],N-[4-p-di phenyl]-1,3-thiazol-2-yl-p-bromo phenoacet amide [6], p-bromopheno acetic acid hydrazide [7] , 1-N-(p-bromo pheno acetyl)-1,2-dihydro-pyridazin-3,6- dione [8], 1-N-(p-bromo pheno acetyl)-1,2-dihydro-phthalazin-3,8- dione[ 9], 1-(p-bromo pheno acetyl)-3-methylpyrazol-5-one [10] and 1-(p-bromo phenol acetyl)- 3,5-dimethyl pyrazole [11] have been synthesized. The prepared compounds were characterized by m.p.,FT-IR and 1H-NMR spectroscopy. Also ,the biological activity was evaluated .

scholarly journals Synthesis and characterization of new Oxazine , Thiazine and Pyrazol derived from chalcones

2014 ◽  
Vol 11 (2) ◽  
pp. 477-485 ◽  
Author(s):  
Baghdad Science Journal
Keyword(s):  
Nmr Spectroscopy ◽  
Hydrazine Hydrate ◽  
Elemental Analysis ◽  
Potassium Hydroxide ◽  
1H Nmr Spectroscopy ◽  
Room Temperature ◽  
Potassium Hydroxide Solution ◽  
Synthesis And Characterization ◽  
Heterocyclic Derivatives

In this study, chalcones were synthesis by condensing 2-acetylpyridine with aromatic aldehyde derivatives in dilute ethanolic potassium hydroxide solution at room temperature according to Claisen-Schmidt condensation. After that, new heterocyclic derivatives such as Oxazine, Thiazine and Pyrazol were synthesis by reaction between chalcones with urea, thiourea and hydrazine hydrate respectively scheme 1. All these compounds wrer characterization by FTIR, 1H-NMR spectroscopy and elemental analysis.

scholarly journals Identification and analytical characterization of seven NPS, by combination of 1H NMR spectroscopy, GC–MS and UPLC–MS/MS®, to resolve a complex toxicological fatal case

2019 ◽  
Vol 298 ◽  
pp. 140-148 ◽  
Author(s):  
Alice Ameline ◽  
Delphine Garnier ◽  
Laurie Gheddar ◽  
Camille Richeval ◽  
Jean-michel Gaulier ◽  
...  
Keyword(s):  
Nmr Spectroscopy ◽  
1H Nmr ◽  
1H Nmr Spectroscopy ◽  
Fatal Case ◽  
Analytical Characterization

scholarly journals 1H NMR Spectroscopy Characterization of Porcine Vitreous Humor in Physiological and Photoreceptor Degeneration Conditions

2019 ◽  
Vol 60 (2) ◽  
pp. 741 ◽  
Author(s):  
Alberto Elmi ◽  
Domenico Ventrella ◽  
Luca Laghi ◽  
Giacomo Carnevali ◽  
Chenglin Zhu ◽  
...  
Keyword(s):  
Nmr Spectroscopy ◽  
1H Nmr ◽  
1H Nmr Spectroscopy ◽  
Vitreous Humor ◽  
Photoreceptor Degeneration

The Conformation of Some 1,6-Disulfide-Bridged D-Hexopyranoses

2005 ◽  
Vol 58 (3) ◽  
pp. 199 ◽  
Author(s):  
Ethan D. Goddard-Borger ◽  
Brian W. Skelton ◽  
Robert V. Stick ◽  
Allan H. White
Keyword(s):  
Nmr Spectroscopy ◽  
Single Crystal ◽  
1H Nmr ◽  
1H Nmr Spectroscopy ◽  
Similar Investigation ◽  
X Ray ◽  
X Ray Crystallography ◽  
Structure Determinations ◽  
Derivatives Of

The use of 1H NMR spectroscopy, in tandem with X-ray crystallography, has cast light on the conformation of the 1,6-disulfide-bridged derivatives of d-gluco-, d-manno-, d-allo-, d-galacto-, and d-talo-pyranose. A similar investigation was performed on the thiosulfinate derived from the d-gluco disulfide. Single-crystal X-ray structure determinations are reported for (1S,5S,6S,7S,8R)-6,7,8-tribenzoyloxy-9-oxa-2,3-dithiabicyclo[3.3.1]nonane, (1S,5S,6S,7R,8R)-6,7,8-tribenzoyloxy-9-oxa-2,3-dithiabicyclo[3.3.1]nonane, and (1S,2S,5S,6S,7S,8R)-6,7,8-triacetoxy-9-oxa-2,3-dithiabicyclo[3.3.1]nonane 2-oxide.

Synthesis and Characterization of Three Novel Nitrogen-containing Macrolides

2011 ◽  
Vol 66 (9) ◽  
pp. 930-934
Author(s):  
Xin Leng ◽  
Bingqin Yang ◽  
Yuanyuan Liu ◽  
Yi Xie ◽  
Jie Tong
Keyword(s):  
Nmr Spectroscopy ◽  
Hydrogen Bonds ◽  
1H Nmr Spectroscopy ◽  
Mass Spectra ◽  
Synthesis And Characterization ◽  
Stacking Interactions ◽  
X Ray Diffraction ◽  
Preparation Methods ◽  
X Ray

Three novel nitrogen-containing macrolides have been synthesized by esterification. All of them have been characterized by infrared (IR), elemental analysis, mass spectra (MS), and 1H NMR spectroscopy, and their crystal structures were determined by single-crystal X-ray diffraction. The preparation methods and the intermolecular associations based on C-H・・・O hydrogen bonds and π- π stacking interactions are discussed.

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