Isolation and characterization of a fungistatic principle produced by bacteria

1968 ◽  
Vol 14 (12) ◽  
pp. 1289-1296 ◽  
Author(s):  
P. L. Smith ◽  
R. J. Green Jr.
Keyword(s):  
Molecular Weight ◽  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Elemental Analysis ◽  
Mass Spectra ◽  
Potential Role ◽  
Pseudomonas Sp ◽  
Isolation And Characterization ◽  
Soil Fungistasis

A fungistatic principle produced by a bacterium Pseudomonas sp. was isolated, characterized, and its potential role in soil fungistasis considered. The principle was isolated from a concentrated cultural filtrate of the bacterium by the use of column chromatography, and characterized by its solubility and elemental analysis and by infrared, nuclear magnetic resonance, and mass spectra. The fungistatic principle was an unsaturated, aliphatic, hydroxyketone with a molecular weight of approximately 166. This compound could be recovered from soil only with organic solvents and, therefore, it was concluded that the principle probably does not contribute to soil fungistasis.

scholarly journals Synthesis and Characterization of Some Ni(II) and Cu(II) Complexes with 2-[(4-Aminophenyl)imino]-1, 2-diphenyl-1-ethanone

2010 ◽  
Vol 7 (1) ◽  
pp. 49-54
Author(s):  
K. M. Khalifa ◽  
A. M. Hamil ◽  
A. Gasem ◽  
A. Abdulsalam
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Elemental Analysis ◽  
Mass Spectra ◽  
Synthesis And Characterization ◽  
Ligand Ratio ◽  
Metal Ligand ◽  
Nuclear Magnetic

The present work deals with synthesis and characterization of the ligand 2-[(4-aminophnyl)imino]-1,2-diphenyl-1-ethanone and their complexes with Ni(II) and Cu(II) ions. The synthesized ligand and its complexes have been characterized by elemental analysis, infrared, electronic, nuclear magnetic resonance and mass spectra. The metal ligand ratio was found to be 1:1. Square planer geometry for both complexes was suggested.

Regioselective synthesis of new 7,8-dichlorobenzofuro[3,2-c]quinoline-6,9,10(5H)-triones from reactions of 4-hydroxy-2-quinolones with 3,4,5,6-tetrachloro-1,2-benzoquinone

2020 ◽  
Vol 44 (7-8) ◽  
pp. 388-392
Author(s):  
Ashraf A Aly ◽  
Alaa A Hassan ◽  
Nasr K Mohamed ◽  
Lamiaa E Abd El-Haleem ◽  
Stefan Bräse
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Elemental Analysis ◽  
Mass Spectra ◽  
Regioselective Synthesis ◽  
Two Dimensional ◽  
New Compounds ◽  
Nuclear Magnetic

A novel series of 7,8-dichlorobenzofuro[3,2- c]quinoline-6,9,10(5 H)-triones was obtained regioselectively in good yields. The products were formed by the reactions of the 4-hydroxy-2(1 H)-quinolinones with 3,4,5,6-tetrachloro-1,2-benzoquinone in tetrahydrofuran as the solvent. Infrared, nuclear magnetic resonance (two-dimensional nuclear magnetic resonance), mass spectra and elemental analysis were used to elucidate the structures of new compounds.

Isolation and Characterization of the Photoalteration Products of cis- and trans-Chlordane

1975 ◽  
Vol 58 (1) ◽  
pp. 6-9
Author(s):  
Francis I Onuska ◽  
Michael E Comba
Keyword(s):  
Mass Spectrometry ◽  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Thin Layer ◽  
High Yield ◽  
Isolation And Characterization ◽  
The Individual ◽  
Cis And Trans ◽  
Layer Chromatography

Abstract Ultraviolet irradiation of cis- and trares-chlordane yielded 3 photolysis products. The expected half-caged analog of cis-chlordane was formed in high yield, and 2 minor photoproducts of trans-chlordane were observed. One of these products was a half-caged isomer. The individual photoproducts were isolated by thin layer chromatography and characterized by infrared, nuclear magnetic resonance, and mass spectrometry.

Isomers of bis(trifluoromethyl)phosphinomethylhydrazine, (CF3)2PNHNHMe and (CF3)2PN(Me)NH2

1969 ◽  
Vol 47 (22) ◽  
pp. 4281-4283 ◽  
Author(s):  
L. K. Peterson ◽  
G. L. Wilson
Keyword(s):  
Molecular Weight ◽  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Vapor Phase ◽  
Mass Spectra ◽  
Electronic Effects ◽  
Nuclear Magnetic

The synthesis of isomers of bis(trifluoromethyl)phosphinomethylhydrazine, (CF3)2PNHNHMe, 1, and (CF3)2PN(Me)NH2, 2, and their characterization by infrared, nuclear magnetic resonance, and mass spectra, and by vapor phase molecular weight measurements are described. The significance of the formation of both isomers is discussed in terms of steric and electronic effects.

Preparation and characterization of a series of bromodiphenyl(N,N-dialkyldithiocarbamato)tellurium(IV) compounds where R=Me, Et, i-Pr, Bu, and of chlorodiphenyl(N,N-dibutyldithiocarbamato)tellurium(IV) and diphenylbis(N,N-dibutyldithiocarbamato)tellurium(IV). Crystal structure of Ph2TeBr[S2CNEt2] and Ph2Te[S2CNBu2]2

1991 ◽  
Vol 69 (12) ◽  
pp. 1948-1956 ◽  
Author(s):  
Jane H. E. Bailey ◽  
John E. Drake ◽  
Maria L. Y. Wong
Keyword(s):  
Crystal Structure ◽  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Crystal Structures ◽  
Vibrational Spectroscopy ◽  
Elemental Analysis ◽  
Reductive Elimination ◽  
Cell Parameters ◽  
Nuclear Magnetic Resonance Spectra

The series Ph2TeBr[S2CNR2], where R = Bu, Pr, i-Pr, Et, and Me, as well as Ph2TeCl[S2CNR2] and Ph2Te[S2CNR2]2, where R=Bu, Pr, have been synthesized and characterized by elemental analysis and vibrational spectroscopy. Comparisons of the effect of changing R groups and halogen atoms can be made based on the two crystal structures determined herein along with earlier work. The geometry about tellurium is consistent with that of a distorted sawhorse structure where the dithiocarbamate groups are monodentate (or anisobidentate). The crystal structures of Ph2TeBr[S2CNEt2], 4, and Ph2Te[S2CNBu2]2, 7, were completed. The cell parameters for 4 are a = 11.204(3) Å, b = 14.106(11) Å, c = 13.867(10) Å, α = 99.62(6)°, β = 102.76(5)°, γ = 87.73(4)°, V = 2107 Å3, Z = 4, R = 0.0448, and Rw = 0.0489 and for 7 are a = 19.392(6) Å, b = 9.622(2) Å, c = 19.089(6) Å, β = 104.70(2)°, V = 3445(2) Å3, Z = 4, R = 0.0397, and Rw = 0.0439. Nuclear magnetic resonance spectra are not simple and indicate that several species are present in solution, as rearrangements and reductive elimination take place. Key words: structure, tellurium, bromo, diphenyl, dialkyldithiocarbamato.

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