Phenolic Analogs of Amino Carboxylic-Acid Ligands for Tc-99m. 1. Synthesis and Characterization of N,N'-Ethylenebis[2-(-O-Hydroxyphenyl)Glycines] (Ehpg)

1987 ◽  
Vol 40 (10) ◽  
pp. 1695 ◽  
Author(s):  
JG Wilson
Keyword(s):  
Carboxylic Acid ◽  
Spectral Data ◽  
Dimethyl Ester ◽  
Synthesis And Characterization ◽  
Mass Spectral Data ◽  
Mass Spectral ◽  
Amino Carboxylic Acid

Nine N,N'- ethylenebis [2-(o- hydroxyphenyl ) glycines ] ( ehpg ) have been prepared and characterized by conversion into their dimethyl ester dihydrochlorides. Their i.r ., 1H n.m.r. and f.a.b. mass spectral data are presented and discussed.

scholarly journals Microwave Assisted Synthesis and Characterization of Schiff Base of 2-Amino Benzimidazole

2018 ◽  
Vol 10 (4) ◽  
Author(s):  
Garima Shrivastava ◽  
Manjul Shrivastava
Keyword(s):  
Schiff Base ◽  
Spectral Data ◽  
Aromatic Aldehyde ◽  
Synthesis And Characterization ◽  
Microwave Assisted Synthesis ◽  
Mass Spectral Data ◽  
Mass Spectral ◽  
Microwave Assisted

New Schiff base (2-[(1H-benzimidazol-2-ylimino) methyl]-4,6- diiodophenol) was synthesized by the condensation of aryl/hetero aromatic aldehyde (3,5diiodosalicylaldehyde) with 2- amino benzimidazole under conventional and microwave conditions and characterized through IR, HNMR and Mass spectral data and CHN analysis

Phenolic Analogs of Amino Carboxylic Acid Ligands for 99mTc. II. Synthesis and Characterization of N,N'-Ethylenebis[N-(o-Hydroxybenzyl)-glycines] (ehbg)

1988 ◽  
Vol 41 (2) ◽  
pp. 173 ◽  
Author(s):  
JG Wilson
Keyword(s):  
Carboxylic Acid ◽  
Mass Spectra ◽  
Dimethyl Ester ◽  
Synthesis And Characterization ◽  
Amino Carboxylic Acid

Ten N,N,- ethylenebis [N-(o- hydroxybenzyl ) glycines ] ( ehbg ), eight of them new, have been synthesized and characterized by their i.r ., 1H n.m.r . and f.a.b, mass spectra and by conversion of their dimethyl ester dihydrochlorides.

scholarly journals Synthesis and Characterization of 4-substituted-3,4-dihydro-4-(2,4- dioxopentan-3-yl)-3-phenylbenzo[e][1,3] Oxazin-2-ones

2020 ◽  
pp. 34-38
Author(s):  
Laxminarayana Eppakayala ◽  
Ravi Kumar Bommera ◽  
Sailaja Gummadelli ◽  
Thirumala Chary Maringanti
Keyword(s):  
Spectral Data ◽  
Synthesis And Characterization ◽  
Mass Spectral Data ◽  
Mass Spectral

Some substituted benzoxazine derivatives have been synthesized in simple two steps. The structures of the synthesized compounds were confirmed by NMR and Mass spectral data.

Synthesis and Characterization of Some Dibasic Tridentate Schiff Base Ligands

1975 ◽  
Vol 53 (6) ◽  
pp. 939-944 ◽  
Author(s):  
Elmer C. Alyea ◽  
Abdul Malek
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Schiff Base ◽  
Magnetic Resonance ◽  
Synthesis And Characterization ◽  
Mass Spectral Data ◽  
Schiff Base Ligands ◽  
Mass Spectral ◽  
Structural Formulas ◽  
Tridentate Schiff Base

The synthesis and characterisation of several dibasic tridentate Schiff base ligands (H2SB) are described. Structural formulas for the isolated ligands are suggested on the basis of infrared, nuclear magnetic resonance, and mass spectral data.

High Activity of Binuclear Cobalt(II) Complex for Ethylene Evolution from 1-AminocycIopropane-1-carboxylic Acid in the Presence of Hydrogen Peroxide

1999 ◽  
Vol 54 (7-8) ◽  
pp. 534-541 ◽  
Author(s):  
Teruyuki Kobayashi ◽  
Yumiko Sasaki ◽  
Tetsuya Akamatsu ◽  
Toshihiro Ishii ◽  
Yoshiaki Oda ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Carboxylic Acid ◽  
High Activity ◽  
Spectral Data ◽  
Cobalt Complex ◽  
Oxidative Degradation ◽  
Mass Spectral Data ◽  
Ethylene Evolution ◽  
Mass Spectral

Abstract The binuclear Co(II) and Mn(II) complexes with H5(HXTA). where H5(HXTA) repre­sents N,N′-(2-hydroxy-5-methyl-1,3-xylylene)bis(N-carboxymethylglycine), induced a strong ethylene evolution from 1-aminocyclopropane-l-carboxylic acid (ACC) in the presence of hydrogen peroxide, whereas activities of the corresponding Fe(III), Ni(II), and V(III) com­plexes were found negligible. Based on spectroscopic results and mass-spectral data it is proposed that a peroxide adduct of binuclear Co(II) (and Mn(II)) complex with η1-coordina­tion mode interacts with ACC, which is chelated to a binuclear cobalt complex leading to facile oxidative degradation of ACC and to evolution of ethylene.

scholarly journals Synthesis and Characterization of Some Novel Coumarin Based 2-Pyridone Heterocycles with their Broad Spectrum Antimicrobial Potency

2016 ◽  
Vol 66 ◽  
pp. 1-12 ◽  
Author(s):  
Nisheeth C. Desai ◽  
Tushar J. Karkar
Keyword(s):  
Antimicrobial Activity ◽  
Synthesis And Characterization ◽  
Bacterial Strains ◽  
Mass Spectral Data ◽  
Mass Spectral ◽  
H Nmr ◽  
Bacteria And Fungi ◽  
Broth Dilution ◽  
C Nmr

The synthesis of a novel series of 6-((arylidene) amino)-2-oxo-1-((1-(2-oxo-2H-chromen-3-yl) ethylidene) amino)-4-phenyl-1,2-dihydropyridine-3,5-dicarbonitriles 4a-o were synthesized and structures of compounds have been elucidated by IR,1H NMR,13C NMR and mass spectral data. Antimicrobial activity was measured against certain strains of bacteria and fungi by serial broth dilution. Evaluation of antimicrobial activity shown that the compounds (4g, 4j, 4k and 4o) were found to be most active against selected bacterial strains and compounds (4d, 4m and 4n) were found to be most active against selected fungal strains.

scholarly journals Synthesis, Characterization and Screening of Anti-tubercular activity of 2, 5-Disubstituted-1, 3, 4-Oxadiazole

2013 ◽  
Vol 1 (03) ◽  
pp. 12-19
Author(s):  
Alex Martin
Keyword(s):  
Spectral Analysis ◽  
Carboxylic Acid ◽  
Microwave Irradiation ◽  
Hydrazine Hydrate ◽  
Spectral Data ◽  
Acid Hydrazide ◽  
Mass Spectral Data ◽  
Furoic Acid ◽  
Mass Spectral ◽  
Phosphorous Oxychloride

The synthesis of 2-furyl-5-(substituted)-1,3,4-oxadiazoles was carried out by microwave irradiation of 2-furoic acid and ethanol followed by subsequent hydrazinolysis with hydrazine hydrate. Finally furan-2-acid hydrazide was treated with appropriate carboxylic acid in the presence of phosphorous oxychloride to produce title compounds. The structures of the newly synthesized compounds were established on the basis of spectral analysis such as IR, H1NMR and Mass spectral data. The synthesized compounds were screened for their anti-tubercular activity.

scholarly journals Isolation, and Structural Characterization of a New Hexa β-D-Glucopyranosyl Diterpene from Stevia rebaudiana

2018 ◽  
Vol 13 (4) ◽  
pp. 1934578X1801300
Author(s):  
Venkata Sai Prakash Chaturvedula ◽  
Srinivasa Rao Meneni
Keyword(s):  
Spectral Data ◽  
Structural Characterization ◽  
Stevia Rebaudiana ◽  
Mass Spectral Data ◽  
Mass Spectral ◽  
Stevia Rebaudiana Bertoni

A new diterpene glycoside with six β-D-glucopyranosyl units was isolated from the extract of the leaves of Stevia rebaudiana Bertoni, which was identified as 13-[(2- O-β-D-glucopyranosyl-β-D-glucopyranosyl)oxy] ent-kaur-16-en-19-oic acid-[2- O-β-D-glucopyranosyl-3- O-(2- O-β-D-glucopyranosyl)-β-D-glucopyrano-syl -β-D-glucopyranosyl) ester (1) based on the extensive NMR (1H and 13C, COSY, HSQC, and HMBC) and mass spectral data as well as hydrolysis studies.

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