ChemInform Abstract: Novel Diazinyl 3-Pyridyl Ketones: Efficient Synthesis and Complete Assignment of 1H and 13C NMR Spectra.

ChemInform ◽  
2010 ◽  
Vol 28 (28) ◽  
pp. no-no
Author(s):  
G. HEINISCH ◽  
T. LANGER ◽  
P. LUKAVSKY
Keyword(s):  
13C Nmr ◽  
Nmr Spectra ◽  
13C Nmr Spectra ◽  
Efficient Synthesis ◽  
1H And 13C Nmr ◽  
Complete Assignment

Synthesis and complete assignment of the 1H and 13C NMR spectra of 6-substituted and 2,6-disubstituted pyridazin-3(2H)-ones

2011 ◽  
Vol 49 (7) ◽  
pp. 437-442 ◽  
Author(s):  
Pedro Besada ◽  
Tamara Costas ◽  
Noemi Vila ◽  
Carla Chessa ◽  
Carmen Terán
Keyword(s):  
13C Nmr ◽  
Nmr Spectra ◽  
13C Nmr Spectra ◽  
1H And 13C Nmr ◽  
Complete Assignment

Complete assignment of the 1H and 13C NMR spectra of antimicrobial 4-arylamino- 3-nitrocoumarin derivatives

2010 ◽  
Vol 48 (11) ◽  
pp. 896-902 ◽  
Author(s):  
Vidoslav Dekić ◽  
Niko Radulović ◽  
Rastko Vukićević ◽  
Biljana Dekić ◽  
Danielle Skropeta ◽  
...  
Keyword(s):  
13C Nmr ◽  
Nmr Spectra ◽  
13C Nmr Spectra ◽  
1H And 13C Nmr ◽  
Complete Assignment

scholarly journals SYNTHESIS, COMPLETE ASSIGNMENT OF 1H- AND 13C-NMR SPECTRA AND ANTIOXIDANT ACTIVITY OF NEW AZINE DERIVATIVE BEARING COUMARIN MOIETY

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Milenko Ristić ◽  
Biljana Dekić ◽  
Niko Radulović ◽  
Marija Aksić
Keyword(s):  
Antioxidant Activity ◽  
13C Nmr ◽  
Nmr Spectra ◽  
2D Nmr ◽  
13C Nmr Spectra ◽  
Target Compound ◽  
1H And 13C Nmr ◽  
Dpph Method ◽  
Complete Assignment ◽  
Hydrazone Derivative

In this research, the synthesis of a new azine derivative with coumarin moiety was performed in three reaction steps, starting from 4-hydroxycoumarin. The first step in synthesis was the acetylation of 4-hydroxycoumarin to yield 3-acetyl-4-hydroxycoumarin and then the obtained 3-acetyl-4-hydroxycoumarin was reacted with hydrazine hydrate and give a corresponding hydrazone. Condensation of the hydrazone with 4-ethoxy-3-methoxybenzaldehyde afforded the target compound 1-[1-(4-hydroxy-2-oxo-2H-chromen-3-yl)-ethylidene]-2-(4-etoxy-3-methoxybenzylidene)-hydrazine in a good yield. The resulting azine derivative is fully spectrally characterized, including complete assignment of 1H- and 13C-NMR spectra, as well as 2D NMR (1H-1H COSY, NOESY, HSQC and HMBC) spectra. The antioxidant activity of corresponding hydrazone and target compound was evaluated by DPPH method where hydrazone derivative displayed a significant and target azine good antioxidant activity, with IC50 (μM) values 11.69 and 216.60, respectively.

Complete assignment of the 1H and 13C NMR spectra and solution conformation of the antitumour antibiotic, Aclacinomycin A

Tetrahedron ◽  
1995 ◽  
Vol 51 (26) ◽  
pp. 7215-7222 ◽  
Author(s):  
John A. Parkinson ◽  
Ian H. Sadler ◽  
Michael B. Pickup ◽  
Alethea B. Tabor
Keyword(s):  
13C Nmr ◽  
Nmr Spectra ◽  
13C Nmr Spectra ◽  
Solution Conformation ◽  
1H And 13C Nmr ◽  
Complete Assignment ◽  
Aclacinomycin A
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