Nickel-Catalyzed Photoredox-Mediated Cross-Coupling of Aryl Electrophiles and Aryl Azides
作者:Mikhail O. Konev、T. Andrew McTeague、Jeffrey W. Johannes
DOI:10.1021/acscatal.8b02954
日期:2018.10.5
dual catalytic nickel/ruthenium system from aryl azides and arylelectrophiles. Photoreduction of the aryl azide is proposed to proceed through an arylnickel-azide complex, which upon reduction and loss of nitrogen, generates a nickel(III) species capable of facile reductive elimination to afford the desired C–N bond formation. A variety of functionalized (hetero)arylelectrophiles are shown to participate
construction of novel carbocyclic C-nucleosides allowing the syntheses of derivatives with uracil heterobase substituted at the position C-5 as well as C-6 were developed. The crucial step of the first methodology was the reaction of (6-chloro-2,4-dimethoxypyrimidin-5-yl)lithium, the nucleobase precursor, with suitable ketones, the carbocyclic pseudosugar precursors. The second approach was based on
[EN] SYNERGISTIC WEED CONTROL FROM APPLICATIONS OF PYRIDINE CARBOXYLIC ACID HERBICIDES AND ALS INHIBITORS<br/>[FR] LUTTE SYNERGIQUE CONTRE LES MAUVAISES HERBES PAR APPLICATION D'HERBICIDES À BASE D'ACIDE PYRIDINE-CARBOXYLIQUE ET D'INHIBITEURS D'ALS
申请人:DOW AGROSCIENCES LLC
公开号:WO2016044285A1
公开(公告)日:2016-03-24
Disclosed herein are herbicidal compositions comprising a herbicidally effective amount of (a) a pyridine carboxylic acid herbicide or an agriculturally acceptable N-oxide, salt, or ester thereof, and (b) an acetolactate synthase (ALS) inhibitor or an agriculturally acceptable salt or ester thereof. Also disclosed herein are methods of controlling undesirable vegetation which comprise applying to vegetation or an area adjacent the vegetation or applying to soil or water to prevent the emergence or growth of vegetation (a) a pyridine carboxylic acid herbicide or an agriculturally acceptable N-oxide, salt, or ester thereof, and (b) an acetolactate synthase (ALS) inhibitor or an agriculturally acceptable salt or ester thereof, wherein (a) and (b) are each added in an amount sufficient to provide a herbicidal effect.