1,1,2,3,4,5 - Hexahydro Tellurophene [C4H8Te(II)] and 1,3-Dihydro-2λ4-Benzotellurole [C8H8Te(II)] Derivatives

Convenient route of synthesis of the type R2TeX′SY and R2Te(CH3)X′c were dove loved by the reactions of R2Te(II) [R2 = C4H8, C8H8] with IX′S (X′S= Cl, Br), RI (R = CH3, C2H5) and CH3X″c (X″c = Cl, Br, NO3, C6H5OCO).These complexes have been characterised through elemental analysis (Table 1) and 1H NMR spectral data (Table 2). The 1H NMR spectra of C4H8TeICl, C4H8TeIBr, C4H8TeCH3I, C4H8TeCH3Cl, C4H8TeCH3Br, C4H8TeCH3NO3, C4H8TeCH3OCOC6H5, C8H8TeCH3I, and C8H8Te -C2H5I have been recorded in CDCl3 at 300 MHz. The study indicates that the heterocycles of C4H8Te(II) and C8H8Te(II) undergo oxidative addition reactions readily resulting in the increase in the oxidation number of central tellurium atom.

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Oxidative Addition Reactions of P(CN)3, P(NCO)3 and P(NCS)3 to (η5-C5Me5)Co(CO)2

Zeitschrift für Naturforschung B ◽

10.1515/znb-1984-0204 ◽

1984 ◽

Vol 39 (2) ◽

pp. 142-144 ◽

Cited By ~ 5

Author(s):

S. Delgado ◽

J. Macazaga ◽

J. R. Masaguer

Keyword(s):

Elemental Analysis ◽

Nmr Spectra ◽

Oxidative Addition ◽

Addition Reactions ◽

H Nmr

The phosphorus pseudohalogens P(CN)3, P(NCO)3 and P(NCS)3 react with (η5-C5Me5)Co(CO)2 to give the complexes (η5-C5Me5)Co(CO)XPX2 (X = CN, NCO, NCS). All the compounds are characterized by elemental analysis, IR. electronic and 1H NMR spectra

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Synthesis and Antituberculotic Activity of Some Substituted 3-Arylamino-5-cyano-2-pyrazinecarboxamides

Collection of Czechoslovak Chemical Communications ◽

10.1135/cccc19951236 ◽

1995 ◽

Vol 60 (7) ◽

pp. 1236-1241 ◽

Cited By ~ 7

Author(s):

Martin Doležal ◽

Jiří Hartl ◽

Antonín Lyčka ◽

Vladimír Buchta ◽

Želmíra Odlerová

Keyword(s):

Nucleophilic Substitution ◽

Elemental Analysis ◽

Nmr Spectra ◽

Substituted Anilines ◽

H Nmr

Nucleophilic substitution of 3-chloro-5-cyano-2-pyrazinecarboxamide by substituted anilines afforded substituted 3-arylamino-5-cyano-2-pyrazinecarboxamides I-X. The structures of compounds were confirmed by elemental analysis, UV, IR and 1H NMR spectra. The assessment of in vitro antimycotic and antimycobacterial activities of the compounds was carried out. The highest antituberculotic activity against M. tuberculosis in this series was shown by 3-anilino- 5-cyano-2-pyrazinecarboxamide (I), whose efficacy was the same as that of pyrazinecarboxamide.

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Chemie polyfunktioneller Liganden, 64 [1]. Über Hydridoiridium(III)-Komplexe des N.N-Bis(diphenylphosphino)-p-tolylamiii Chemistry of Polyfunctional Ligands, 64 [1]. On Hydridoiridium(III) Complexes of N,N-Bis(diphenylphosphino)-p-tolylamine

Zeitschrift für Naturforschung B ◽

10.1515/znb-1981-0509 ◽

1981 ◽

Vol 36 (5) ◽

pp. 571-577 ◽

Cited By ~ 4

Author(s):

Jochen Ellermann ◽

Leo Mader ◽

Kurt Geibel

Keyword(s):

Nmr Spectra ◽

Oxidative Addition ◽

H Nmr ◽

New Compounds

H2 reacts with [Ir{(Ph2P)2N-p-C6H4CH3}2]Cl · 3 C6H6 (1) to give cis-[Ir(H)2{(Ph2P)2N-p-C6H4CH3}2]Cl · CH2Cl2 (2a). By reaction of 2a with NaBPh4 cis-[Ir(H)2{(Ph2P)2N-p-C6H4CH3}2]BPh4 (2 b) is obtained. Refluxing of 2a in CH2Cl2 yields trans-[lr(H)2{(Ph2P)2N-p-C6H4CH3}2]Cl · 1/2 CH2Cl2 (3a), which undegoes metatheses with NaBPh4 to trans-[Ir(H)2{(Ph2P)2N-p-C6H4CH3}2]BPh4 (3b). 3a is also formed by refluxing of 1 in methanol in the presence of oxygen. Oxidative addition of HCl to 1 and reaction with NaBPh4 yields trans-[Ir(H)(Cl){(Ph2P)2N-p-C6H4CH3}2]BPh4 (4b). The new compounds are characterised by their IR, Raman, 31P{1H} PFT and 1H NMR Spectra

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Synthesis and Antibacterial Activity of Chalcones and Pyrimidine-2-ones

E-Journal of Chemistry ◽

10.1155/2005/134830 ◽

2005 ◽

Vol 2 (2) ◽

pp. 109-112

Author(s):

A. K. Parekh ◽

K. K. Desai

Keyword(s):

Antibacterial Activity ◽

Spectral Data ◽

Elemental Analysis ◽

Aromatic Aldehydes ◽

Gram Negative Bacteria ◽

Gram Positive ◽

Gram Negative ◽

E Coli ◽

Gram Positive Bacteria ◽

H Nmr

Some new chalcones have been prepared by Claisen-schmidt condensation of ketone and different aromatic aldehydes. These chalcones on condensation with urea in presence of acid gave Pyrimidine-2-ones. The synthesized compounds have been characterized by elemental analysis, IR and1H NMR spectral data. They have been screened for their antibacterial activity against Gram positive bacteria B. subtillis & S. aureus and Gram negative bacteria E. coli & S. typhi.

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Reactions of n-C5H5Co(CO)2 and n-Me3SiC5H4Co(CO)2 with (XCN)2 and X(CN)2 (X = S or Se)

Zeitschrift für Naturforschung B ◽

10.1515/znb-1982-0307 ◽

1982 ◽

Vol 37 (3) ◽

pp. 292-298 ◽

Cited By ~ 4

Author(s):

Moisés Morán ◽

Augusto Ibáñez

Keyword(s):

Elemental Analysis ◽

Nmr Spectra ◽

Polar Solvents ◽

Mixed Complexes ◽

H Nmr ◽

Linkage Isomerism

Abstract The pseudohalogens (XCN)2 (X = S or Se) react with n-C5H5Co(CO)2 and n-Me3SiC5H4Co(CO)2 with formation of the 18 electron complexes, RCo(CO)(XCN)2 (R = n-C5H5 or n-Me3SiC5H4). By reactions with X(CN)2 (X = S or Se), the cyclopentadienyl cobalt dicarbonyls are transformed into the mixed complexes, RCo(CO)(CN)(XVN) (R = n-C5H5 or n-Me3SiC5H4. All the compounds are characterized by elemental analysis, IR, electronic and 1H NMR spectra. The thiocyanogen derivatives undergo linkage isomerism (N→S) in polar solvents.

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A Novel Reductive Cross-coupling Reaction of 2-nitrobenzoic Hydrazides and Aldehydes or Ketones Promoted by the Low-valence Titanium Reagent: An Access to 2,3,4,5-tetrahydro-1H-1,3,4-benzotriazepine-5-one Derivatives

Journal of Chemical Research ◽

10.3184/030823405774308899 ◽

2005 ◽

Vol 2005 (9) ◽

pp. 553-555 ◽

Cited By ~ 1

Author(s):

Daqing Shi ◽

Chunling Shi ◽

Liangce Rong ◽

Juxian Wang ◽

Qiya Zhuang ◽

...

Keyword(s):

Elemental Analysis ◽

Nmr Spectra ◽

Coupling Reaction ◽

Cross Coupling ◽

Reductive Coupling ◽

Facile Synthesis ◽

H Nmr ◽

Cross Coupling Reaction

A short and facile synthesis of a series of 2,3,4,5-tetrahydro-1H-1,3,4-benzotriazepine-5-one derivatives was accomplished in good yields via the intermolecular reductive coupling reaction of 2-nitrobenzoic hydrazides and aldehydes or ketones promoted by the low-valence titanium reagent (TiCl4/Zn system). Structures were established on the basis of elemental analysis, IR and 1H NMR spectra.

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Synthesis and Antimicrobial Activity of (2-Methoxy/2-Amino)-6-{4'-[(4'''-Chlorophenyl) (Phenyl) Methyl Amino] Phenyl}-4-Aryl Nicotinonitrile

International Letters of Chemistry Physics and Astronomy ◽

10.18052/www.scipress.com/ilcpa.49.99 ◽

2015 ◽

Vol 49 ◽

pp. 99-103

Author(s):

J.V. Guna ◽

V.N. Bhadani ◽

H.D. Purohit ◽

Dipak M. Purohit

Keyword(s):

Antimicrobial Activity ◽

Thin Layer ◽

Thin Layer Chromatography ◽

Spectral Data ◽

Elemental Analysis ◽

Mass Spectral Data ◽

Mass Spectral ◽

H Nmr ◽

Bacteria And Fungi ◽

Layer Chromatography

2- Methoxy – 6 - {4' - [(4'''- Chlorophenyl) (phenyl) methyl amino] phenyl} - 4 - aryl nicotinonitrile (3a-3l) and 2-Amino-6-{4'-[(4'''-Chlorophenyl)(phenyl)methyl amino]phenyl}-4-aryl nicotinonitrile (4a-4l) have been synthesized. The products have been assayed for their antimicrobial activity against Gram +ve, Gram -ve bacteria and fungi. The structure of the products has been elucidated by IR, 1H-NMR, mass spectral data, elemental analysis and thin layer chromatography.

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N-Tribromphosphazo-Verbindungen / N-Tribromophosphaza-compounds

Zeitschrift für Naturforschung B ◽

10.1515/znb-1971-0202 ◽

1971 ◽

Vol 26 (2) ◽

pp. 75-78 ◽

Cited By ~ 4

Author(s):

Herbert W. Roesky ◽

Graalf Remmers

Keyword(s):

Ir Spectra ◽

Elemental Analysis ◽

Nmr Spectra ◽

Chemical Behavior ◽

H Nmr

By reaction of N-sulfuroxideimides with phosphorus-pentabromide the compounds R-SO2NPBr3 (R = CH3 , CF3 , C6H5, p-Cl-C6H4, and p-CH3C6H4) were prepared. Reactions of hexamethyldisilazane and N- (dimethyl) -trimethylsilylamide resulted in the formation of R-SO2NPBr2N (CH3)2, (R = CH3, C6H5), and R-SO2NPBr2NHSi(CH3)3 (R = CF3, p-CH3-C6H4). The properties and the chemical behavior of these compounds are described. Results of IR-spectra, as well as 31P-, 19F-, and 1H-NMR-spectra and elemental analysis characterize the compounds.

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Tetraalkyldibismutane/Tetraalkyldibismutanes

Zeitschrift für Naturforschung B ◽

10.1515/znb-1983-0202 ◽

1983 ◽

Vol 38 (2) ◽

pp. 125-129 ◽

Cited By ~ 31

Author(s):

Hans Joachim Breunig ◽

Ditmar Müller

Keyword(s):

Spectral Data ◽

Nmr Spectra ◽

Liquid Ammonia ◽

Methyl Groups ◽

H Nmr

Abstract The tetraalkyldibismutanes R2BiBiR2 (R = Et, Pr, iPr, Bu) were synthesized by reactions of 1,2-dibromoethane with sodium dialkylbismutides, which were produced by cleavage of the corresponding trialkylbismutanes with sodium in liquid ammonia. The dibismutanes were isolated in good yields as air sensitive red liquids. Spectral data of dibismutanes and some bismutanes are compared with data of their antimony analogues. 1H NMR spectra reveal, that the methylene protons in Et4Bi2 as well as the methyl groups in iPr4Bi2 are diastereotopic.

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Oxidative Addition of Pseudohalogen to [P(OPh)3]4Ni

Zeitschrift für Naturforschung B ◽

10.1515/znb-1983-0906 ◽

1983 ◽

Vol 38 (9) ◽

pp. 1069-1071

Author(s):

M. Bobadilla ◽

M. Morán

Keyword(s):

Elemental Analysis ◽

Electronic Spectra ◽

Title Compound ◽

Oxidative Addition ◽

H Nmr ◽

Cyanogen Halides

Abstract The title compound reacts with cyanogen halides, XCN (X = Br or I) to give the complexes L2(X)(CN)Ni (L = P(OPh)3, X = Br or I). The oxidative addition of (SCN)2 and (SeCN)2 to the same compound results in the formation of L2Ni(XCN)2 (X = S or Se).All the complexes have been characterized by elemental analysis, and IR, 1H NMR and electronic spectra.

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