Visible light (provided by blue LEDs) induces a very smooth C–C-bond cleavage (analogous to a Norrish Type 1 reaction), which allows to use simple ketones for N-aroylations of sulfoximines.
可见光(由蓝色LED提供)诱导非常平滑的C-C键断裂(类似于Norrish Type 1反应),这使得可以使用简单的酮对亚砜胺进行N-芳基化。
Cyclopropanation Reactions of Enones with Lithiated Sulfoximines: Application to the Asymmetric Synthesis of Chiral Cyclopropanes
作者:Stephen G. Pyne、Zemin Dong、Brian W. Skelton、Allan H. White
DOI:10.1021/jo962216i
日期:1997.4.1
kinetically controlled conditions. At rt the initially formed anionic Michael adducts undergo intramolecular displacement of the sulfonimidoyl group, with inversion of stereochemistry at the carbon bearing the nucleofuge, to give cyclopropanes. Lithiated sulfoximines derived from S-alkyl sulfoximines give mixtures of 1,2- and 1,4-adducts with enones under kinetically controlled conditions. However, at rt
insecticide sulfoxaflor, as well as the clinical candidates PTEFb inhibitor BAY 1143572 and ATR inhibitor AZD 6738 for the treatment of cancer. Herein, the first palladium-catalyzed direct α-arylation of p-methoxybenzyl-protected S,S-dimethylsulfoximine using readily available (hetero)aryl bromides is reported. This new method provides a safe, short, and efficient approach to (hetero)aryl-substituted S,S-dimethylsulfoximine
Disclosed are compounds of Formula 1, including all geometric and stereoisomers, tautomers, N-oxides, and salts thereof,
wherein
R
1
, R
2
, A, L and J are as defined in the disclosure.
Also disclosed are compositions containing the compounds of Formula 1 and methods for controlling plant disease caused by a fungal pathogen comprising applying an effective amount of a compound or a composition of the invention.