scholarly journals Use of Chemical Fractionation and Proton Nuclear Magnetic Resonance to Probe the Physical Structure of the Primary Plant Cell Wall

1990 ◽  
Vol 94 (1) ◽  
pp. 174-178 ◽  
Author(s):  
Iain E. P. Taylor ◽  
Julia C. Wallace ◽  
Alex L. MacKay ◽  
Frank Volke
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Cell Wall ◽  
Magnetic Resonance ◽  
Plant Cell ◽  
Plant Cell Wall ◽  
Physical Structure ◽  
Proton Nuclear Magnetic Resonance ◽  
Chemical Fractionation ◽  
Nuclear Magnetic

Investigation of the physical structure of the primary plant cell wall by proton magnetic resonance

Biochemistry ◽  
1988 ◽  
Vol 27 (5) ◽  
pp. 1467-1473 ◽  
Author(s):  
Alex L. MacKay ◽  
Julia C. Wallace ◽  
Ken Sasaki ◽  
Iain E. P. Taylor
Keyword(s):  
Cell Wall ◽  
Magnetic Resonance ◽  
Plant Cell ◽  
Proton Magnetic Resonance ◽  
Plant Cell Wall ◽  
Physical Structure

Neutron diffraction and proton nuclear magnetic resonance: complementary probes of in situ cellulose dimensions and primary plant cell wall structure

1993 ◽  
Vol 71 (10) ◽  
pp. 1375-1380 ◽  
Author(s):  
P. Martel ◽  
Iain E. P. Taylor
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Cell Wall ◽  
Magnetic Resonance ◽  
Neutron Diffraction ◽  
Potassium Hydroxide ◽  
Plant Cell Wall ◽  
Ammonium Oxalate ◽  
Proton Nuclear Magnetic Resonance ◽  
Scattering Measurements

Neutron diffraction was used to monitor the microscopic structure of cell walls from etiolated bean (Phaseolus vulgaris L.) hypocotyls after successive chemical fractionations with ammonium oxalate – oxalic acid and potassium hydroxide. Wide angle neutron scattering measurements showed that there was no highly ordered long range structure and confirm results from proton nuclear magnetic resonance techniques that there is alteration of the cell wall cellulose by chemical fractionations. Small angle scattering measurements showed that the residual cellulose microfibrils increased in diameter from 75.0 ± 2.3 to 110.0 ± 4.2 Å (1 Å = 0.1 nm) after successive treatments with ammonium oxalate – oxalic acid and potassium hydroxide. The technique has potential applications to study cellulose dimensions in situ. Key words: plant cell wall, cellulose dimensions, neutron diffraction, proton NMR.

scholarly journals N-[7-Chloro-4-[4-(phenoxymethyl)-1H-1,2,3-triazol-1-yl] quinoline]-acetamide

Molbank ◽  
10.3390/m1213 ◽  
2021 ◽  
Vol 2021 (2) ◽  
pp. M1213
Author(s):  
Paolo Coghi ◽  
Jerome P. L. Ng ◽  
Ali Adnan Nasim ◽  
Vincent Kam Wai Wong
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Quantum Coherence ◽  
Biologically Active ◽  
Proton Nuclear Magnetic Resonance ◽  
Dipolar Cycloaddition ◽  
Heteronuclear Single Quantum Coherence ◽  
Pharmacokinetic Properties ◽  
Nuclear Magnetic

The 1,2,3-triazole is a well-known biologically active pharmacophore constructed by the copper-catalyzed azide–alkyne cycloaddition. We herein reported the synthesis of 4-amino-7-chloro-based [1,2,3]-triazole hybrids via Cu(I)-catalyzed Huisgen 1,3-dipolar cycloaddition of 4-azido-7-chloroquinoline with an alkyne derivative of acetaminophen. The compound was fully characterized by Fourier-transform infrared (FTIR), proton nuclear magnetic resonance (1H-NMR), carbon-13 nuclear magnetic resonance (13C-NMR), heteronuclear single quantum coherence (HSQC), ultraviolet (UV) and high-resolution mass spectroscopies (HRMS). This compound was screened in vitro with different normal and cancer cell lines. The drug likeness of the compound was also investigated by predicting its pharmacokinetic properties.

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