Copper-Catalyzed One-Pot Synthesis of α-Ketoamides from 1-Arylethanols
摘要:
A copper-catalyzed one-pot strategy for the synthesis of -ketoamides from 1-arylethanols is described. This triple oxidation of 1-arylethanols involves alcohol oxidation, sp(3) C-H oxidation, and oxidative amidation with amines. The protocol is highly efficient, delivering -ketoamides in good to excellent yields.
A practical approach towards the synthesis of α-ketoamides from terminal alkenes has been developed using I2/IBX under one-pot reaction conditions.
从末端烯烃合成α-酮酰胺的实用方法已经开发出来,使用I2/IBX在一锅反应条件下。
UV Assisted High‐Efficient Synthesis of α‐Ketoamides using Air Promoted by A Non‐Metal Catalyst in Aqueous Solution
作者:Jianhui Li、Shaopo He、Kuan Zhang、Ziyi Quan、Qiheng Shan、Zhongliang Sun、Bo Wang
DOI:10.1002/cctc.201801365
日期:2018.11.7
(λ=210 nm) promoted procedure proceeding in aqueous media at room temperature using ambient air as the oxidant for efficient synthesis of an array of α‐ketoamides of all types using a non‐metal catalyst N‐iodosuccinimide with a loading of 20 mol%. With UV, oxygen in the air was efficiently utilized as the green oxidant, some control experiments were carried out and a plausible mechanism was proposed
The syntheses of α-ketoamides via<sup>n</sup>Bu<sub>4</sub>NI-catalyzed multiple sp<sup>3</sup>C–H bond oxidation of ethylarenes and sequential coupling with dialkylformamides
作者:Bingnan Du、Bo Jin、Peipei Sun
DOI:10.1039/c4ob00520a
日期:——
The nBu4NI-catalyzed sequential C–O and C–N bond formation via multiple sp3C–H bond activation of ethylarenes, using N,N-dialkylformamide as the amino source, provided α-ketoamides with moderate yields.
所述Ñ卜4 NI -催化的顺序C-O和C-N键的形成通过多个SP 3 C-H键活化ethylarenes,采用Ñ,Ñ -dialkylformamide作为氨基源,提供α酮酰胺具有中等产率。
Functionalization of Piperidine Derivatives for the Site‐Selective and Stereoselective Synthesis of Positional Analogues of Methylphenidate
作者:Wenbin Liu、Tobias Babl、Alexander Röther、Oliver Reiser、Huw M. L. Davies
DOI:10.1002/chem.201905773
日期:2020.4
Rhodium-catalyzed C-H insertions and cyclopropanations of donor/acceptor carbenes have been used for the synthesis of positional analogues of methylphenidate. The site selectivity is controlled by the catalyst and the amine protecting group. C-H functionalization of N-Boc-piperidine using Rh2 (R-TCPTAD)4 , or N-brosyl-piperidine using Rh2 (R-TPPTTL)4 generated 2-substitited analogues. In contrast,
Solvent-free one-pot oxidation of ethylarenes for the preparation of α-ketoamides under mild conditions
作者:Fuyan Liu、Kuan Zhang、Yanfeng Liu、Shan Chen、Yiping Chen、Dela Zhang、Chunfu Lin、Bo Wang
DOI:10.1039/c6ra26679g
日期:——
Here we developed a highly efficient solvent-free, one-pot procedure for synthesizing α-ketoamides from ethylarenes and amines, by oxidizing a C–H bond sp3 center. A copper catalyst was employed, and the reactions proceeded smoothly at ambient temperatures. Most of the tested ethylarenes and amines were successfully converted to their corresponding α-ketoamides in moderate to excellent yields of up