scholarly journals The contradictory effect of the methoxy-substituent in palladium-catalyzed ethylene/methyl acrylate cooligomerization

2018 ◽  
Vol 47 (8) ◽  
pp. 2778-2790 ◽  
Author(s):  
V. Rosar ◽  
A. Meduri ◽  
T. Montini ◽  
P. Fornasiero ◽  
E. Zangrando ◽  
...  

Three new α-diimines bearing at least one methoxy group on one aryl ring were investigated. The introduction of the methoxy substituent on the ancillary ligand had a remarkable effect on the catalytic performances of the relevant palladium complexes.

ChemCatChem ◽  
2012 ◽  
Vol 5 (5) ◽  
pp. 1170-1183 ◽  
Author(s):  
Angelo Meduri ◽  
Tiziano Montini ◽  
Fabio Ragaini ◽  
Paolo Fornasiero ◽  
Ennio Zangrando ◽  
...  

ChemCatChem ◽  
2017 ◽  
Vol 9 (17) ◽  
pp. 3402-3411 ◽  
Author(s):  
Vera Rosar ◽  
Tiziano Montini ◽  
Gabriele Balducci ◽  
Ennio Zangrando ◽  
Paolo Fornasiero ◽  
...  

ChemCatChem ◽  
2014 ◽  
Vol 6 (8) ◽  
pp. 2403-2418 ◽  
Author(s):  
Vera Rosar ◽  
Angelo Meduri ◽  
Tiziano Montini ◽  
Francesco Fini ◽  
Carla Carfagna ◽  
...  

2019 ◽  
Vol 38 (19) ◽  
pp. 3498-3511 ◽  
Author(s):  
Anna Dall’Anese ◽  
Vera Rosar ◽  
Luca Cusin ◽  
Tiziano Montini ◽  
Gabriele Balducci ◽  
...  

2003 ◽  
Vol 345 (3) ◽  
pp. 402-409 ◽  
Author(s):  
Jörg Zimmermann ◽  
Igor Tkatchenko ◽  
Peter Wasserscheid

2017 ◽  
Vol 144 ◽  
pp. 401-410 ◽  
Author(s):  
Florian Cavodeau ◽  
Amandine Viretto ◽  
Belkacem Otazaghine ◽  
José-Marie Lopez-Cuesta ◽  
Christelle Delaite

2011 ◽  
Vol 7 ◽  
pp. 1255-1260 ◽  
Author(s):  
Verónica Guilarte ◽  
M Pilar Castroviejo ◽  
Estela Álvarez ◽  
Roberto Sanz

A new route to regioselectively dialkoxy-functionalized benzo[b]furan derivatives has been developed from 3-halo-2-iodoanisoles bearing an additional methoxy group, which have been accessed through an ortho-zincation/iodination reaction. Two palladium-catalyzed processes, namely a Sonogashira coupling followed by a tandem hydroxylation/cyclization sequence, give rise to new and interesting dimethoxy-substituted benzo[b]furans.


Author(s):  
Ligia R. Gomes ◽  
John Nicolson Low ◽  
Catarina Oliveira ◽  
Fernando Cagide ◽  
Fernanda Borges

The crystal structures of three benzamide derivatives,viz. N-(6-hydroxyhexyl)-3,4,5-trimethoxybenzamide, C16H25NO5, (1),N-(6-anilinohexyl)-3,4,5-trimethoxybenzamide, C22H30N2O4, (2), andN-(6,6-diethoxyhexyl)-3,4,5-trimethoxybenzamide, C20H33NO6, (3), are described. These compounds differ only in the substituent at the end of the hexyl chain and the nature of these substituents determines the differences in hydrogen bonding between the molecules. In each molecule, them-methoxy substituents are virtually coplanar with the benzyl ring, while thep-methoxy substituent is almost perpendicular. The carbonyl O atom of the amide rotamer istransrelated with the amidic H atom. In each structure, the benzamide N—H donor group and O acceptor atoms link the molecules intoC(4) chains. In1, a terminal –OH group links the molecules into aC(3) chain and the combined effect of theC(4) andC(3) chains is a ribbon made up of screw relatedR22(17) rings in which the ...O—H... chain lies in the centre of the ribbon and the trimethoxybenzyl groups forms the edges. In2, the combination of the benzamideC(4) chain and the hydrogen bond formed by the terminal N—H group to an O atom of the 4-methoxy group link the molecules into a chain ofR22(17) rings. In3, the molecules are linked only byC(4) chains.


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