Structural Analysis of Wheat Straw Lignin by Quantitative31P and 2D NMR Spectroscopy. The Occurrence of Ester Bonds and α-O-4 Substructures

1997 ◽  
Vol 45 (4) ◽  
pp. 1212-1219 ◽  
Author(s):  
Claudia Crestini ◽  
Dimitris S. Argyropoulos
Keyword(s):  
Nmr Spectroscopy ◽  
Structural Analysis ◽  
Wheat Straw ◽  
2D Nmr ◽  
2D Nmr Spectroscopy

Synthesis of the 4-Pyridine Analog of Kostanecki's Triketone. Determination of Constitution and Stereochemistry by 2D-NMR Spectroscopy and X-ray Structural Analysis

1991 ◽  
Vol 1991 (12) ◽  
pp. 1337-1341 ◽  
Author(s):  
Horst Kessler ◽  
Siggi Mronga ◽  
Bernhard Kutscher ◽  
Arndt Müller ◽  
William S. Sheldrick
Keyword(s):  
Nmr Spectroscopy ◽  
Structural Analysis ◽  
2D Nmr ◽  
2D Nmr Spectroscopy ◽  
X Ray

Demonstration of 2D NMR Spectroscopy in a Powered Magnet at 25 T Using Cascade Field Regulation

2019 ◽  
Author(s):  
Benjamin D. McPheron ◽  
Jeffrey L. Schiano ◽  
Brian F. Thomson ◽  
Kiran K. Shetty ◽  
William W. Brey
Keyword(s):  
Nmr Spectroscopy ◽  
2D Nmr ◽  
2D Nmr Spectroscopy

scholarly journals Ambient-Temperature Synthesis of (E)-N-(3-(tert-Butyl)-1-methyl-1H-pyrazol-5-yl)-1-(pyridin-2-yl)methanimine

Molbank ◽  
10.3390/m1250 ◽  
2021 ◽  
Vol 2021 (3) ◽  
pp. M1250
Author(s):  
Diana Becerra ◽  
Justo Cobo ◽  
Juan-Carlos Castillo
Keyword(s):  
Mass Spectrometry ◽  
Nmr Spectroscopy ◽  
Ambient Temperature ◽  
Magnesium Sulfate ◽  
Elemental Analysis ◽  
Condensation Reaction ◽  
2D Nmr ◽  
2D Nmr Spectroscopy ◽  
Temperature Synthesis ◽  
Tert Butyl

We report the ambient-temperature synthesis of novel (E)-N-(3-(tert-butyl)-1-methyl-1H-pyrazol-5-yl)-1-(pyridin-2-yl)methanamine 3 in 81% yield by a condensation reaction between 3-(tert-butyl)-1-methyl-1H-pyrazol-5-amine 1 and 2-pyridinecarboxaldehyde 2 in methanol using magnesium sulfate as a drying agent. The N-pyrazolyl imine 3 was full characterized by IR, 1D, and 2D NMR spectroscopy, mass spectrometry, and elemental analysis.

Highly NIR-emitting ytterbium complexes containing 2-(tosylaminobenzylidene)-N-benzoylhydrazone anions: structure in solution and use for bioimaging

2021 ◽  
Author(s):  
Anton D Kovalenko ◽  
Alexander A. Pavlov ◽  
Ilya D. Ustinovich ◽  
Alena S. Kalyakina ◽  
Alexander S Goloveshkin ◽  
...  
Keyword(s):  
Nmr Spectroscopy ◽  
Lanthanide Complexes ◽  
2D Nmr ◽  
2D Nmr Spectroscopy ◽  
Ytterbium Complexes ◽  
Solution Behaviour ◽  
Structure In Solution

Abstract: Solution behaviour in DMSO using 1D and 2D NMR spectroscopy was performed for lanthanide complexes Ln(L)(HL) and Ln(HL)2Cl, containing non-macrocyclic 2-(tosylamino)-benzylidene-N-benzoylhydrazone (H2L), and the structure of [Yb(L)]+ cation in...

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