Multifunctional transformation of amide C–N bond cleavage is reported. The protocol applies to benzamide, thioamide, alcohols, and mercaptan under similar reaction conditions catalyzed by NaOTs. It is noteworthy that NaOTs can not only be recycled and reused for up to three cycles without significant loss in catalytic activity, but also catalyze gram-grade reactions. This study provides a novel solution
An environmentally friendly palladium‐catalyzed Suzuki–Miyauracoupling reaction of twisted amides with potassium aryl trifluoroborates has been developed, generating ketones under pure water phase, room temperature, and ligand‐free condition.
N-Acylsuccinimides: twist-controlled, acyl-transfer reagents in Suzuki–Miyaura cross-coupling by N–C amide bond activation
作者:Yuki Osumi、Chengwei Liu、Michal Szostak
DOI:10.1039/c7ob02269g
日期:——
Suzuki–Miyaura cross-coupling of N-acylsuccinimides as versatile acyl-transfer reagents via selective amide N–C bond cleavage is reported. The method is user-friendly since it employs commercially-available, air-stable reagents and catalysts. The cross-coupling is enabled by half-twist of the amide bond in N-acylsuccinimides. These highlyeffective, crystalline acyl-transfer reagents present major advantages
N-heterocyclic carbene palladium(II)-catalyzed Suzuki-Miyaura cross coupling of N-acylsuccinimides by C-N cleavage
作者:Tao Wang、Jiarui Guo、Hengjin Wang、Han Guo、Dingli Jia、Wen Zhang、Lantao Liu
DOI:10.1016/j.jorganchem.2018.09.026
日期:2018.12
An easily prepared, well-defined N-heterocycliccarbene-palladium(II) complex was found to be an efficientcatalyst for the Suzuki-Miyaura cross-coupling of N-acylsuccinimides with arylboronic acids via C-N bond activation. Under the optimal conditions, all reactions proceeded smoothly generating broad array of diaryl ketones in good to high yields (81->99%) within hours.
Nickel‐Catalyzed Isotopic Labeling: Synthesis of Oxygen‐18‐Labeled Esters from Amides
作者:Nithin Pootheri、Sunwoo Lee
DOI:10.1002/adsc.202300729
日期:2023.11.21
three-component reaction of amides, alkyl halides, and 18O-labeled water. This method demonstrated excellent selectivity and compatibility with various amides and alkyl halides, allowing the synthesis of diverse isotopicallylabelled esters. Ni-catalyzed reaction of alkyl bromides, carboxylates that generated from amides, and water in the presence of a base formed the desired esters.
开发了一种通过酰胺、烷基卤和 18 O-标记水的 Ni 催化三组分反应制备18 O-标记酯的方法。该方法表现出优异的选择性以及与各种酰胺和烷基卤的相容性,从而可以合成多种同位素标记的酯。在碱存在下,烷基溴、由酰胺生成的羧酸盐和水发生镍催化反应,形成所需的酯。