Pd/C-Catalyzed Aminocarbonylation of Aryl Iodides via Oxidative C–N Bond Activation of Tertiary Amines to Tertiary Amides
作者:Rajendra S. Mane、Bhalchandra M. Bhanage
DOI:10.1021/acs.joc.5b02385
日期:2016.2.5
This work reports oxidative N-dealkylation/carbonylation of tertiaryamines to tertiary amides by using molecular oxygen as a sole oxidant using a Pd/C catalyst. This protocol is free from ligands, additives, bases, and cocatalysts. Different tertiaryamines as well as aryl iodides have been examined for this transformation, providing desired products in good to excellent yield.
SEM, TEM, energy‐dispersive X‐ray spectroscopy, and vibrating‐sample magnetometer techniques. Fe3O4/PDA/CdS was found to be a highly active photocatalyst for the amidation of aromatic aldehydes by using air as a clean oxidant under mild conditions. The photocatalyst can be recovered by magnetic separation and successfully reused for five cycles without considerable loss of its catalytic activity.
磁性CdS量子点(Fe 3 O 4 /聚多巴胺(PDA)/ CdS)通过廉价的起始原料通过便捷的方法合成。通过FTIR光谱,XRD,SEM,TEM,能量色散X射线光谱和振动样品磁力计技术对制得的催化剂进行表征。通过在温和条件下使用空气作为清洁氧化剂,发现Fe 3 O 4 / PDA / CdS是一种高活性的光催化剂,可用于芳族醛的酰胺化。可以通过磁分离回收光催化剂并成功地重复使用五个循环,而不会显着降低其催化活性。
Pd-Catalyzed Oxidative Aminocarbonylation of Arylboronic Acids with Unreactive Tertiary Amines via C–N Bond Activation
作者:Yuvraj A. Kolekar、Bhalchandra M. Bhanage
DOI:10.1021/acs.joc.1c00345
日期:2021.10.15
An efficient synthesis of tertiary amides from aryl boronic acids and inert tertiary amines through the oxidative carbonylation via C(sp3)–N bond activation is presented. This protocol significantly restricts the homocoupling biarylketone product. It involves the use of a homogeneous PdCl2/CuI catalyst and a heterogeneous Pd/C based catalyst, which promotes C(sp3)–N bond activation of tertiary amines
Beyond Directed <i>Ortho</i> Metalation: Ruthenium-Catalyzed Amide-Directed C<sub>Ar</sub>–N Activation/C–C Coupling Reaction of Anthranilamides with Organoboronates
作者:Yigang Zhao、Victor Snieckus
DOI:10.1021/ol501180q
日期:2014.6.20
A new, catalytic, and general methodology for the synthesis of biaryls and heterobiaryls by the cross coupling of anthranilamide derivatives (o-NMe2 benzamides) with aryl boroneopentylates is described. The reaction proceeds under catalytic RuH2(CO)(PPh3)3 conditions driven by the activation of the unreactive C–N bond by amide directing group (DG)-Ru catalyst chelation. High regioselectivity, orthogonality