scholarly journals Studies on the Rhenium Complexes derived from substituted Thiazole and Imidazole Ligands

1970 ◽  
Vol 24 (2) ◽  
pp. 97-105
Author(s):  
Md Manzurul Karim ◽  
Sudeepta Sutradhar ◽  
Kamrul Hassan
Keyword(s):  
Spectral Data ◽  
1H Nmr ◽  
13C Nmr ◽  
Chemical Society ◽  
Mass Spectral Data ◽  
Rhenium Complexes ◽  
Mass Spectral ◽  
Imidazole Ligands ◽  
Moderate Yield

Treatment of [Re2(CO)10(MeCN)2] with 2-(methylmercapto)benzothiazole/2-(methylmercapto)benzimidazole in refluxing benzene resulted in the isolation of compounds [Re2(CO)8(µ-η1,η1-(C7H4NS)SCH3] and [Re2(CO)8(µ-η1,η1-(C7H5N2)SCH3] in moderate yield.  The compounds have been characterized by IR, 1H NMR, 13C NMR and mass spectral data. DOI: http://dx.doi.org/10.3329/jbcs.v24i2.9698 Journal of Bangladesh Chemical Society, Vol. 24(2), 97-105, 2011

scholarly journals Green Synthetic Protocol for (E)-1-Aryl-3-(2-morpholinoquinolin- 3-yl)prop-2-en-1-ones and Their Antimicrobial Activity

2019 ◽  
Vol 31 (9) ◽  
pp. 1895-1898
Author(s):  
Relangi Siva Subrahmanyam ◽  
Venkateswara Rao Anna
Keyword(s):  
Antimicrobial Activity ◽  
Spectral Data ◽  
1H Nmr ◽  
13C Nmr ◽  
Mass Spectral Data ◽  
In Vitro Antimicrobial Activity ◽  
Mass Spectral ◽  
Fungal Organisms

We report here an easy, efficient and green synthetic protocol for the (E)-1-aryl-3-(2-morpholinoquinolin-3-yl)prop-2-en-1-ones by the Claisen-Schmidt condensation of 2-morpholinoquinoline-3-carbaldehyde and different substituted acetophenones by using 1-butyl-3-methylimidazolium tetrafluoroborate (Bmim)BF4. The compounds were characterized by using 1H NMR, 13C NMR and mass spectral data and screened there in vitro antimicrobial activity against different bacterial and fungal organisms.

scholarly journals Binuclear Rhenium and Manganese Carbonyl Compounds Containing Hetero-Mercaptanes

2012 ◽  
Vol 25 (1) ◽  
pp. 62-70 ◽  
Author(s):  
Md Anwarul Hoque ◽  
Md Arzu Miah ◽  
Md Nurul Abser ◽  
Abul K Azad ◽  
Kamrun N Khan ◽  
...  
Keyword(s):  
Ambient Temperature ◽  
Spectral Data ◽  
1H Nmr ◽  
Metal Atom ◽  
Carbonyl Compounds ◽  
Chemical Society ◽  
Mass Spectral Data ◽  
Heterocyclic Ligands ◽  
Mass Spectral ◽  
Manganese Carbonyl

Treatment of 2-Mercaptothiazoline, 2-Mercaptobenzimidazole, 2-Mercapto-1- methylimidazole with [M2(CO)10] (M = Re and Mn) at ambient temperature in presence of decarbonylating reagent Me3NO give the complexes [Mn2(?-?2-C3H4NS2)2(CO)6] (1), [Re2(?-?2-C3H4NS2)2(CO)6] (2), [Mn2(?-?2-C7H5SN2)2(CO)6] (3), [Re2(?-?2- C7H5SN2)2(CO)6] (4), [Re2(?-?2-C4H5N2S)2(CO)6] (5) and [Re2(?1-C4H5N2SH)(CO)9] (6) respectively. All the compounds have been characterized by IR, 1H NMR and mass spectral data. The heterocyclic ligands are expected to be coordinated to two or single metal atom through the nitrogen and sulfur atoms or via only sulfur atom.DOI: http://dx.doi.org/10.3329/jbcs.v25i1.11775 Journal of Bangladesh Chemical Society, Vol. 25(1), 62-70, 2012> 

scholarly journals N-[2-(1H-Indol-3-yl)ethyl]-2-(4-isobutylphenyl)propanamide

Molbank ◽  
10.3390/m1031 ◽  
2018 ◽  
Vol 2018 (4) ◽  
pp. M1031
Author(s):  
Stanimir Manolov ◽  
Iliyan Ivanov ◽  
Yulian Voynikov
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Spectral Data ◽  
1H Nmr ◽  
13C Nmr ◽  
Mass Spectral Data ◽  
Mass Spectral ◽  
Nuclear Magnetic

The compound in the title was prepared by reaction between tryptamine and ibuprofen using N,N′-dicyclohexylcarbodiimide as a “dehydrating” reagent. The structure of the newly synthesized compound was determined by nuclear magnetic resonance (NMR) (1H-NMR and 13C-NMR), UV, IR, and mass spectral data.

scholarly journals Benzothiazolylazo derivatives of some β-dicarbonyl compounds and their Cu(II), Ni(II) and Zn(II) complexes

2010 ◽  
Vol 75 (5) ◽  
pp. 639-648 ◽  
Author(s):  
Krishnannair Krishnankutty ◽  
Basheer Ummathur ◽  
Kamalakshy Babu
Keyword(s):  
Spectral Data ◽  
1H Nmr ◽  
13C Nmr ◽  
Metal Ion ◽  
Tridentate Ligand ◽  
Mass Spectral Data ◽  
Dicarbonyl Compounds ◽  
Mass Spectral ◽  
Derivatives Of ◽  
Hydrogen Bonded

The coupling of diazotized 2-aminobenzothiazole with 1,3- dicarbonyl compounds (benzoylacetone, methylacetoacetate and acetoacetanilide) yielded a new series of tridentate ligand systems (HL). Analytical, IR, 1H-NMR, 13C-NMR and mass spectral data indicated that the compounds exist in the intramolecularly hydrogen bonded azo-enol tautomeric form in which one of the carbonyl groups of the dicarbonyl moiety had enolised and hydrogen bonded to one of the azo nitrogen atoms. The compounds formed stable complexes with Ni(II), Cu(II) and Zn(II) ions. The Cu(II) complexes conform to [CuL(OAc)] stoichiometry while the Ni(II) and Zn(II) complexes are in agreement with [ML2] stoichiometry. Analytical, IR, 1H-NMR, 13C-NMR and mass spectral data of the complexes are consistent with the replacement of the chelated enol proton of the ligand with a metal ion, thus leading to a stable sixmembered chelate ring involving a cyclic nitrogen, one of the azo nitrogens and the enolate oxygen. The Zn(II) chelates are diamagnetic while Cu(II) and Ni(II) complexes showed a normal paramagnetic moment.

scholarly journals Studies on the conversion of ketones of heterocyclic spiro compounds having barbituric acid moieties into oxime derivatives

2013 ◽  
Vol 48 (1) ◽  
pp. 7-12
Author(s):  
MM Rahman ◽  
ME Halim ◽  
SM Ahmed ◽  
K Akhter ◽  
UKR Romman
Keyword(s):  
Spectral Data ◽  
1H Nmr ◽  
13C Nmr ◽  
Barbituric Acid ◽  
Spiro Compounds ◽  
Absolute Alcohol ◽  
Mass Spectral Data ◽  
Mass Spectral ◽  
Elemental Analyses ◽  
Oxime Derivatives

Five oxime derivatives 7, 11-bis-(4-chlorophenyl)-3-thioxo-2,4-diazaspiro[5,5]undecane-1,5,9-trione-9-oxime (2a), 7,11-bis-(4- methoxyphenyl)-2,4-diazaspiro[5,5]undecane-1,3,5,9-tetraone-9-oxime (2b), 7,11-diphenyl-2,4-diazaspiro[5,5]undecane-1,3,5,9-tetraone- 9-oxime (2c), 7,11-bis-(4-methoxyphenyl)-3-thioxo-2,4-diazaspiro[5,5]undecane-1,5,9-trione-9-oxime (2d), 7,11-diphenyl-3-thioxo-2,4- diazaspiro[5,5]undecane-1,5,9-trione-9-oxime (2e) were synthesized from the corresponding 7,11-diaryl-2,4-diazaspiro[5,5]undecane-3- oxo (or thioxo)-1,5,9-triones (1a-e) with hydroxylaminehydrogenchloride in presence of pyrimidine in absolute alcohol. The structures of the compounds 2a-e were confirmed by their UV, IR, 1H NMR, 13C NMR and mass spectral data and elemental analyses. DOI: http://dx.doi.org/10.3329/bjsir.v48i1.15383 Bangladesh J. Sci. Ind. Res. 48(1), 7-12, 2013

scholarly journals Heteroarylazo derivatives of cyclohexane-1,3-dione and their metal complexes

2014 ◽  
Vol 79 (3) ◽  
pp. 303-311 ◽  
Author(s):  
Muhammed Ummathur ◽  
Damodaran Babu ◽  
Krishnannair Krishnankutty
Keyword(s):  
Metal Complexes ◽  
Spectral Data ◽  
1H Nmr ◽  
13C Nmr ◽  
Tautomeric Form ◽  
Tridentate Ligand ◽  
Mass Spectral Data ◽  
Mass Spectral ◽  
New Type ◽  
Derivatives Of

The coupling of diazotized 2-aminothiazole and 2-aminobenzo-thiazole with cyclohexane-1,3-dione yielded a new type of tridentate ligand systems (HL). Analytical, IR, 1H NMR, 13C NMR and mass spectral data indicate the existence of the compounds in the intramolecularly hydrogen bonded azo-enol tautomeric form. Monobasic tridentate coordination of the compounds in their [CuL(OAc)] and [ML2] complexes [M = Ni(II) and Zn(II)] has been established on the basis of analytical and spectral data. The Zn(II) chelates are diamagnetic while Cu(II) and Ni(II) complexes showed normal paramagnetic moment.

scholarly journals N-(2-(1H-Indol-3-yl)ethyl)-2-(6-methoxynaphthalen-2-yl)propanamide

Molbank ◽  
10.3390/m1187 ◽  
2021 ◽  
Vol 2021 (1) ◽  
pp. M1187
Author(s):  
Stanimir Manolov ◽  
Iliyan Ivanov ◽  
Dimitar Bojilov
Keyword(s):  
Spectral Data ◽  
13C Nmr ◽  
Title Compound ◽  
High Yield ◽  
Mass Spectral Data ◽  
Mass Spectral

The title compound was obtained in high yield in the reaction between tryptamine and naproxen. The newly synthesized naproxen derivative was fully analyzed and characterized via 1H, 13C-NMR, UV, IR, and mass spectral data.

scholarly journals (1R,4S,5S)-5-((3-Hydroxypropyl)amino)-4-((1-Methyl-1H-tetrazol-5-yl)thio)Cyclopent-2-en-1-ol

Molbank ◽  
10.3390/m1199 ◽  
2021 ◽  
Vol 2021 (2) ◽  
pp. M1199
Author(s):  
Milene A. G. Fortunato ◽  
Filipa Siopa ◽  
Carlos A. M. Afonso
Keyword(s):  
Spectral Data ◽  
13C Nmr ◽  
Ring Opening ◽  
Environmentally Friendly ◽  
Mass Spectral Data ◽  
Mass Spectral ◽  
Excellent Yield ◽  
Ring Opening Reaction ◽  
Nucleophilic Ring Opening

Using environmentally friendly conditions, the nucleophilic ring-opening reaction of 6-azabicyclo[3.1.0]hex-3-en-2-ol with 1-methyl-1H-tetrazole-5-thiol provided a novel thiol-incorporated aminocyclopentitol, (1R,4S,5S)-5-((3-hydroxypropyl)amino)-4-((1-methyl-1H-tetrazol-5-yl)thio)cyclopent-2-en-1-ol, in excellent yield (95%). The newly synthesized compound was analyzed and characterized via 1H, 13C-NMR, HSQC, and mass spectral data.

scholarly journals Synthesis and Preliminary Evaluation of Benzofuran-Oxadiazole Conjugates as Potential Antitubercular Agents

2019 ◽  
Vol 31 (4) ◽  
pp. 965-970 ◽  
Author(s):  
Veerabhadrayya S. Negalurmath ◽  
Obelannavar Kotresh ◽  
Mahantesha Basanagouda
Keyword(s):  
Mycobacterium Tuberculosis ◽  
Spectral Data ◽  
13C Nmr ◽  
Antitubercular Activity ◽  
Preliminary Evaluation ◽  
Antitubercular Agents ◽  
Mass Spectral Data ◽  
Mass Spectral ◽  
Mycobacterium Tuberculosis H37rv ◽  
Mycobacterium Phlei

In the present study, a series of benzofuran-oxadiazole conjugates 7(a-o) was designed, synthesized and characterized through IR, 1H NMR, 13C NMR and mass spectral data. All the compounds were screened for preliminary antitubercular activity against Mycobacterium phlei and Mycobacterium tuberculosis H37RV. Among all the target compounds, the compound possessing chlorine (7k, MIC 1.56 μg/mL) and bromine (7m, MIC 1.56 μg/mL) on 6th position of benzofuran showed highest activity against Mycobacterium phlei. Whereas, bromine on either 5th position (7l, MIC 3.125 μg/mL) or 6th position (7m MIC 3.125 μg/mL) on benzofuran exhibited highest activity for Mycobacterium tuberculosis (H37 RV).

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