Raoudha Abderrahim - Academia.edu (original) (raw)
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Papers by Raoudha Abderrahim
![Research paper thumbnail of Facile Synthesis of 1Amino[1,3,5]triazino[1,2a]-benzimidazolo-2-one and Pyrimidino[1,2a]benzimidazolo-4-one Derivatives](https://attachments.academia-assets.com/47851937/thumbnails/1.jpg)
](Synthetic Communications, 2011
N-(1-Carboethoxy-benzimidazol-2-yl) 1 reacted with different hydrazines to give [1,3,5]triazino[1... more N-(1-Carboethoxy-benzimidazol-2-yl) 1 reacted with different hydrazines to give [1,3,5]triazino[1,2a]benzimidazole derivatives 2. Treatment of compound 1 with tBuOK and EtONa yielded pyrimidino[1,2a]benzimidazole derivatives 3 in good yields.
![Research paper thumbnail of Synthesis of [1,2-a] benzimidazolo-1,3,5-triazin-2-thione, [1,2-a] benzimidazolo-1,3,5-thiadiazin-2-thione, [1,2-a] benzimidazolo-1,3,5-triazin-2-amine, and [1,2-a] benzimidazol-2-yl amidrazone](https://attachments.academia-assets.com/47851931/thumbnails/1.jpg)
](Heteroatom Chemistry, 2010
N-benzimidazol-2-yl imidate type 1 reacts with thiourea, carbon disulfide, cyanamide, and hydrazi... more N-benzimidazol-2-yl imidate type 1 reacts with thiourea, carbon disulfide, cyanamide, and hydrazide to give, respectively, [1,2-a] benzimidazolo-1,3,5-triazin-2-thione 2, [1,2-a] benzimidazolo-1,3,5-thiadiazin-2-thione 3, [1,2-a] benzimidazolo-1,3,5-triazin-2-amine 4, and [1,2-a] benzimidazol-2-yl amidrazone 5 with good yields. Structures elucidation of all newly synthesized heterocyclic compounds was based on the data of IR, 1H NMR, 13C NMR, elemental analysis, and MS of some products. © 2010 Wiley Periodicals, Inc. Heteroatom Chem 21:279–283, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/hc.20618
![Research paper thumbnail of Synthesis, spectroscopic characterization and X-ray structure of [1,2a]benzimidazol-2-yl amidine](https://attachments.academia-assets.com/47851963/thumbnails/1.jpg)
](Spectrochimica Acta Part A-molecular and Biomolecular Spectroscopy, 2011
A new palladium(II) complex with methionine sulfoxide was synthesized and characterized by a set ... more A new palladium(II) complex with methionine sulfoxide was synthesized and characterized by a set of chemical and spectroscopic techniques. Elemental and mass spectrometry analyses of the solid complex fit to the composition [Pd(C 5 H 10 NO 3 S) 2 ]·H 2 O. 13 C NMR, [ 1 H-15 N] NMR and infrared spectra indicate coordination of the amino acid to Pd(II) through the carboxylate and amino groups in a square planar geometry. The complex is soluble in water.
Synthetic Communications, 1997
Reaction of ethyl chloroformate and acyl chlorides with iminoesters derived from 2- aminobenzimid... more Reaction of ethyl chloroformate and acyl chlorides with iminoesters derived from 2- aminobenzimidazole, followed by Grignard reagent condensation leads to a variety of oxadiazinobenzimidazoles in good yield.
Phosphorus Sulfur and Silicon and The Related Elements, 2002
The reaction of hexamethylphosphotriamide or methylphosphonic bis(dimethylamide) compounds with a... more The reaction of hexamethylphosphotriamide or methylphosphonic bis(dimethylamide) compounds with amidines derived from N-Benzimidazoyl imidates 1 leads to (1,2a)benzimidazolo-1,3,5,2-tiazaphosphorine-2-oxides 4 in good yields. If the condensation is realized at room temperature, N-phosphonic amidines 3 can be isolated as intermediates. The isolated compounds 2 , 3 , and 4 are identified by spectroscopic methods: IR, 1 H, 13 C, 31 P, NMR,
Cheminform, 2010
ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was e... more ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Spectrochimica Acta Part A-molecular and Biomolecular Spectroscopy, 2010
Formation of inclusion complex between benzidine diammonium dipicrate and -cyclodextrin with sto... more Formation of inclusion complex between benzidine diammonium dipicrate and -cyclodextrin with stoichiometry 1:2 (guest-host) has been established by UV, 1 H NMR, 13 C NMR, IR spectra and powder X-ray diffractometry. 1 H NMR studies are used to confirm the inclusion and to provide information on the geometry of dipicrate inside the cavity of -cyclodextrin.
Spectrochimica Acta Part A-molecular and Biomolecular Spectroscopy, 2010
Formation of inclusion complex between benzidine diammonium dipicrate and β-cyclodextrin with sto... more Formation of inclusion complex between benzidine diammonium dipicrate and β-cyclodextrin with stoichiometry 1:2 (guest-host) has been established by UV, 1H NMR, 13C NMR, IR spectra and powder X-ray diffractometry. 1H NMR studies are used to confirm the inclusion and to provide information on the geometry of dipicrate inside the cavity of β-cyclodextrin.
Phosphorus Sulfur and Silicon and The Related Elements, 2010
The condensation of hexamethylphosphorotriamide and bis-(dimethylamino) methylphosphonate with am... more The condensation of hexamethylphosphorotriamide and bis-(dimethylamino) methylphosphonate with amidrazones 1 constitutes a new route to the synthesis of 1,2,4,3-triazaphosphole-3-oxide derivatives 3. Structures of all the synthesized compounds have been established by NMR (1H, 13C, 31P) and IR spectroscopy, as well as by elemental analysis and MS spectral data for some products.
Synthetic Communications, 2011
N-(1-Carboethoxy-benzimidazol-2-yl) 1 reacted with different hydrazines to give [1,3,5]triazino[1... more N-(1-Carboethoxy-benzimidazol-2-yl) 1 reacted with different hydrazines to give [1,3,5]triazino[1,2a]benzimidazole derivatives 2. Treatment of compound 1 with tBuOK and EtONa yielded pyrimidino[1,2a]benzimidazole derivatives 3 in good yields.
Heteroatom Chemistry, 2010
N-benzimidazol-2-yl imidate type 1 reacts with thiourea, carbon disulfide, cyanamide, and hydrazi... more N-benzimidazol-2-yl imidate type 1 reacts with thiourea, carbon disulfide, cyanamide, and hydrazide to give, respectively, [1,2-a] benzimidazolo-1,3,5-triazin-2-thione 2, [1,2-a] benzimidazolo-1,3,5-thiadiazin-2-thione 3, [1,2-a] benzimidazolo-1,3,5-triazin-2-amine 4, and [1,2-a] benzimidazol-2-yl amidrazone 5 with good yields. Structures elucidation of all newly synthesized heterocyclic compounds was based on the data of IR, 1H NMR, 13C NMR, elemental analysis, and MS of some products. © 2010 Wiley Periodicals, Inc. Heteroatom Chem 21:279–283, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/hc.20618
Spectrochimica Acta Part A-molecular and Biomolecular Spectroscopy, 2011
A new palladium(II) complex with methionine sulfoxide was synthesized and characterized by a set ... more A new palladium(II) complex with methionine sulfoxide was synthesized and characterized by a set of chemical and spectroscopic techniques. Elemental and mass spectrometry analyses of the solid complex fit to the composition [Pd(C 5 H 10 NO 3 S) 2 ]·H 2 O. 13 C NMR, [ 1 H-15 N] NMR and infrared spectra indicate coordination of the amino acid to Pd(II) through the carboxylate and amino groups in a square planar geometry. The complex is soluble in water.
Synthetic Communications, 1997
Reaction of ethyl chloroformate and acyl chlorides with iminoesters derived from 2- aminobenzimid... more Reaction of ethyl chloroformate and acyl chlorides with iminoesters derived from 2- aminobenzimidazole, followed by Grignard reagent condensation leads to a variety of oxadiazinobenzimidazoles in good yield.
Phosphorus Sulfur and Silicon and The Related Elements, 2002
The reaction of hexamethylphosphotriamide or methylphosphonic bis(dimethylamide) compounds with a... more The reaction of hexamethylphosphotriamide or methylphosphonic bis(dimethylamide) compounds with amidines derived from N-Benzimidazoyl imidates 1 leads to (1,2a)benzimidazolo-1,3,5,2-tiazaphosphorine-2-oxides 4 in good yields. If the condensation is realized at room temperature, N-phosphonic amidines 3 can be isolated as intermediates. The isolated compounds 2 , 3 , and 4 are identified by spectroscopic methods: IR, 1 H, 13 C, 31 P, NMR,
Cheminform, 2010
ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was e... more ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Spectrochimica Acta Part A-molecular and Biomolecular Spectroscopy, 2010
Formation of inclusion complex between benzidine diammonium dipicrate and -cyclodextrin with sto... more Formation of inclusion complex between benzidine diammonium dipicrate and -cyclodextrin with stoichiometry 1:2 (guest-host) has been established by UV, 1 H NMR, 13 C NMR, IR spectra and powder X-ray diffractometry. 1 H NMR studies are used to confirm the inclusion and to provide information on the geometry of dipicrate inside the cavity of -cyclodextrin.
Spectrochimica Acta Part A-molecular and Biomolecular Spectroscopy, 2010
Formation of inclusion complex between benzidine diammonium dipicrate and β-cyclodextrin with sto... more Formation of inclusion complex between benzidine diammonium dipicrate and β-cyclodextrin with stoichiometry 1:2 (guest-host) has been established by UV, 1H NMR, 13C NMR, IR spectra and powder X-ray diffractometry. 1H NMR studies are used to confirm the inclusion and to provide information on the geometry of dipicrate inside the cavity of β-cyclodextrin.
Phosphorus Sulfur and Silicon and The Related Elements, 2010
The condensation of hexamethylphosphorotriamide and bis-(dimethylamino) methylphosphonate with am... more The condensation of hexamethylphosphorotriamide and bis-(dimethylamino) methylphosphonate with amidrazones 1 constitutes a new route to the synthesis of 1,2,4,3-triazaphosphole-3-oxide derivatives 3. Structures of all the synthesized compounds have been established by NMR (1H, 13C, 31P) and IR spectroscopy, as well as by elemental analysis and MS spectral data for some products.