Green alternative solvents for the copper-catalysed arylation of phenols and amides
作者:Carlo Sambiagio、Rachel H. Munday、A. John Blacker、Stephen P. Marsden、Patrick C. McGowan
DOI:10.1039/c6ra02265k
日期:——
for the Cu-catalysed arylation of phenols and amides is reported. Alkyl acetates proved to be efficient solvents in the catalytic processes, and therefore excellent alternatives to the typical non-green solvents used for Cu-catalysed arylationreactions. Solvents such as isosorbide dimethyl ether (DMI) and diethyl carbonate also appear to be viable possibilities for the arylation of phenols. Finally
Picolinamides as Effective Ligands for Copper-Catalysed Aryl Ether Formation: Structure-Activity Relationships, Substrate Scope and Mechanistic Investigations
作者:Carlo Sambiagio、Rachel H. Munday、Stephen P. Marsden、A. John Blacker、Patrick C. McGowan
DOI:10.1002/chem.201404275
日期:2014.12.22
picolinic acid amide derivatives as an effective family of bidentate ligands for copper‐catalysed arylether synthesis is reported. A fluorine‐substituted ligand gave good results in the synthesis of a wide range of arylethers. Even bulky phenols, known to be very challenging substrates, were shown to react with aryl iodides with excellent yields using these ligands. At the end of the reaction, the first
Because diarylethers are present as an important motif in pharmaceuticals and natural products, extensive studies for the development of novel methods have been conducted. A conventional method for the construction of the diarylether moiety is the intermolecular cross-coupling reaction of aryl halides and phenols with a copper or palladium catalyst. We developed a catalytic decarbonylative etherification
Provided are: a heterocyclic amide compound represented by formula (1); and a herbicide containing the heterocyclic amide compound. In the formula, G represents a group represented by formula (G-1) or (G-2); each of W and W
1
independently represents an oxygen atom or the like; each of Z
1
and Z
a1
represents a phenyl group or the like; Z
2
represents an aromatic heterocycle; each of R
1
and R
2
independently represents a C
1
-C
6
alkyl group or the like; R
3
represents a hydrogen atom, a C
1
-C
6
alkyl group or the like; and each of R
4
, R
a4
, R
5
, R
a5
, R
6
, R
a6
and R
7
independently represents a hydrogen atom or the like.