Atropisomerism of biphenyl compounds. An Important role of o-substituted methoxy groups and fluorine atoms

1981 ◽  
Vol 46 (2) ◽  
pp. 389-392 ◽  
Author(s):  
Nobusuke Kawano ◽  
Masayoshi Okigawa ◽  
Noriko Hasaka ◽  
Isao Kouno ◽  
Yasuko Kawahara ◽  
...  
Keyword(s):  
Methoxy Groups

The Role of Methoxy Groups in Methanol to Olefin Conversion

2008 ◽  
Vol 112 (7) ◽  
pp. 2685-2688 ◽  
Author(s):  
Zhi-Min Cui ◽  
Qiang Liu ◽  
Shao-Wei Bain ◽  
Zhuo Ma ◽  
Wei-Guo Song
Keyword(s):  
Olefin Conversion ◽  
Methanol To Olefin ◽  
Methoxy Groups

scholarly journals Role of the Methoxy Groups in Cryptophanes for Complexation of Xenon: Conformational Selection Evidence from 129 Xe-1 H NMR SPINOE Experiments

ChemPhysChem ◽  
2017 ◽  
Vol 18 (12) ◽  
pp. 1561-1568 ◽  
Author(s):  
Patrick Berthault ◽  
Céline Boutin ◽  
Estelle Léonce ◽  
Erwann Jeanneau ◽  
Thierry Brotin
Keyword(s):  
Conformational Selection ◽  
H Nmr ◽  
Methoxy Groups

ChemInform Abstract: ATROPISOMERISM OF BIPHENYL COMPOUNDS. AN IMPORTANT ROLE OF O-SUBSTITUTED METHOXY GROUPS AND FLUORINE ATOMS

1981 ◽  
Vol 12 (26) ◽  
Author(s):  
N. KAWANO ◽  
M. OKIGAWA ◽  
N. HASAKA ◽  
I. KOUNO ◽  
Y. KAWAHARA ◽  
...  
Keyword(s):  
Methoxy Groups

scholarly journals The role of methoxy substituents in regulating the activity of selenides that serve as spirodioxyselenurane precursors and glutathione peroxidase mimetics

2016 ◽  
Vol 94 (4) ◽  
pp. 305-311 ◽  
Author(s):  
David J. Press ◽  
Thomas G. Back
Keyword(s):  
Hydrogen Peroxide ◽  
Catalytic Activity ◽  
Glutathione Peroxidase ◽  
Methoxy Group ◽  
Steric Effects ◽  
Disulfide Formation ◽  
Excess Hydrogen ◽  
Meta Position ◽  
Methoxy Groups

A series of o-(hydroxymethyl)phenyl selenides containing single or multiple methoxy substituents was synthesized, and the rate at which each compound catalyzed the oxidation of benzyl thiol to its disulfide with excess hydrogen peroxide was measured. This assay provided the means for comparing the relative abilities of the selenides to mimic the antioxidant selenoenzyme glutathione peroxidase. The mechanism for catalytic activity involves oxidation of the selenides to their corresponding selenoxides with hydrogen peroxide, cyclization to spirodioxyselenuranes, followed by reduction with two equivalents of thiol to regenerate the original selenide with concomitant disulfide formation. A single p-methoxy group on each aryl moiety afforded the highest catalytic activity, while methoxy groups in the meta position had little effect compared to the unsubstituted selenide, and o-methoxy groups suppressed activity. The installation of multiple methoxy groups on each aryl moiety provided no improvement. These results can be rationalized on the basis of dominating mesomeric and steric effects of the p- and o-substituents, respectively.

Carbazole based hole transporting materials for solid state dye sensitizer solar cells: role of the methoxy groups

2014 ◽  
Vol 63 (8) ◽  
pp. 1387-1393 ◽  
Author(s):  
Martial Degbia ◽  
Bruno Schmaltz ◽  
Johann Bouclé ◽  
Juozas V Grazulevicius ◽  
François Tran-Van
Keyword(s):  
Solar Cells ◽  
Solid State ◽  
Dye Sensitizer ◽  
Methoxy Groups ◽  
Hole Transporting ◽  
Hole Transporting Materials

Formation of the Compounds with an Epoxychromene Framework: Role of the Methoxy Groups

2014 ◽  
Vol 97 (10) ◽  
pp. 1406-1421 ◽  
Author(s):  
Oksana S. Mikhalchenko ◽  
Dina V. Korchagina ◽  
Konstantin P. Volcho ◽  
Nariman F. Salakhutdinov
Keyword(s):  
Methoxy Groups

Role of the Colchicine Ring A and Its Methoxy Groups in the Binding to Tubulin and Microtubule Inhibition†

Biochemistry ◽  
1998 ◽  
Vol 37 (23) ◽  
pp. 8356-8368 ◽  
Author(s):  
Jose M. Andreu ◽  
Bernardo Perez-Ramirez ◽  
Marina J. Gorbunoff ◽  
David Ayala ◽  
Serge N. Timasheff
Keyword(s):  
Methoxy Groups

Role of dactinomycin in the improved survival of children with Wilms' tumor

JAMA ◽  
1966 ◽  
Vol 195 (12) ◽  
pp. 1005-1009 ◽  
Author(s):  
D. J. Fernbach
Keyword(s):  
Wilms Tumor
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