Copper-Catalyzed Aminoxylation of Different Types of Hydrocarbons with TEMPO: A Concise Route to<i>N-</i>Alkoxyamine Derivatives
作者:Linyi Li、Zhengwei Yu、Zengming Shen
DOI:10.1002/adsc.201500544
日期:2015.11.16
An efficient copper(II)/tert-butyl hydroperoxide catalyst system [(Bpy)Cu(II)/TBHP] for the aminoxylation of different types of hydrocarbons under mild and ambient air conditions has been developed to furnish N-alkoxyamine derivatives in good to high yields. Ketones, esters, nitriles, toluene, ethylbenzene, heterocycles, cyclohexene, and cyclohexanes are well compatible in this system and the catalyst
A General Iron‐Catalyzed Decarboxylative Oxygenation of Aliphatic Carboxylic Acids
作者:Luca Mareen Denkler、Meghana Aladahalli Shekar、Tak Shing Jason Ngan、Luke Wylie、Dinar Abdullin、Marianne Engeser、Gregor Schnakenburg、Tobias Hett、Frank Hendrik Pilz、Barbara Kirchner、Olav Schiemann、Patrycja Kielb、Ala Bunescu
DOI:10.1002/anie.202403292
日期:2024.8.5
We developed a general iron-catalyzed decarboxylative oxygenation strategy that occurs under extraordinarily mild conditions, displays high functional group tolerance, and has a broad substrate scope. We conducted a detailed mechanistic study of the transformation, underpinning the further development of iron-photocatalyzed decarboxylative methodologies.
An iron-catalyzed, visible-light induced decarboxylative alkoxyamination of carboxylic acids with TEMPO is disclosed. In the presence of FeBr2 and TEMPO, a large array of carboxylic acids including marketed drugs and biobased molecules is turned into the corresponding alkoxyamine derivatives. The versatility of the latter offers an entry towards molecular diversity generation from abundant starting
公开了一种铁催化、可见光诱导的羧酸用TEMPO的脱羧烷氧基胺化。在 FeBr 2和 TEMPO 存在下,包括市售药物和生物基分子在内的大量羧酸转化为相应的烷氧基胺衍生物。后者的多功能性为从丰富的起始材料和催化剂生成分子多样性提供了途径。总的来说,该方法为基于 LMCT 的铁催化脱羧功能化提供了一种统一且通用的方法。