Transition metal-free aroylation of NH-sulfoximines with methyl arenes
作者:Ya Zou、Jing Xiao、Zhihong Peng、Wanrong Dong、Delie An
DOI:10.1039/c5cc05483d
日期:——
An iodine-catalyzed N-aroylation of NH-sulfoximines with methyl arenes was herein demonstrated without participation of external organic solvents, transition metal-catalysts or ligands.
A copper-catalyzedoxidative decarboxylative coupling of α-keto acids with NH-sulfoximines has been developed. With CuBr as the catalyst and K2S2O8 as the oxidant, this reaction enables the formation of a C–N bond and gives N-aroylsulfoximine products in moderate to excellent yields. The reaction mechanism is likely to involve the generation of a reactive aroyl radical intermediate.
已经开发了铜催化的α-酮酸与NH-磺基亚砜的氧化脱羧偶联。以CuBr为催化剂,以K 2 S 2 O 8为氧化剂,该反应能够形成C–N键,并以中等至极好的收率得到N-芳酰基亚磺酰亚胺产品。反应机理可能涉及反应性芳酰基自由基中间体的产生。
Microwave-Accelerated N-Acylation of Sulfoximines with Aldehydes under Catalyst-Free Conditions
作者:Kamal K. Rajbongshi、Srinivas Ambala、Thavendran Govender、Hendrik G. Kruger、Per I. Arvidsson、Tricia Naicker
DOI:10.1055/s-0039-1691589
日期:2020.4
An efficient catalyst-free radical cross-coupling reaction between aromatic aldehydes and sulfoximines was developed. The reaction took place in the presence of N-bromosuccinimide as the radical initiator under microwave irradiation to afford the corresponding acylated sulfoximines in moderate to excellent yields (27 examples). This protocol proved to be rapid, easy to handle, and applicable to a broad
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。
[EN] PROCESS FOR THE PREPARATION OF HETEROARYL-SUBSTITUTED SULFUR(VI) COMPOUNDS<br/>[FR] PROCÉDÉ DE PRÉPARATION DE COMPOSÉS DU SOUFRE (VI) SUBSTITUÉS PAR UN HÉTÉROARYLE
申请人:H LEE MOFFITT CANCER CT & RES
公开号:WO2022094218A1
公开(公告)日:2022-05-05
The present disclosure provides processes for the synthesis of organic compounds, in particular processes for the synthesis of heteroaryl-substituted sulfur(VI) compounds by nucleophilic aromatic substitution.