Palladium-Catalyzed <i>Z</i>-Selective Oxidative Amination of <i>ortho</i>-Substituted Primary Anilines with Olefins under an Open Air Atmosphere
作者:Yohei Mizuta、Kaoru Yasuda、Yasushi Obora
DOI:10.1021/jo4010734
日期:2013.6.21
The Pd-catalyzed oxidative amination of olefins with primary anilines has been achieved using molecular dioxygen as the sole oxidant. The use of ortho-substituted primary anilines such as ortho-toluidine was the key to the successful development of this reaction, providing the corresponding N-alkenyl substituted anilines in high yields with unusually high levels of Z-selectivity.
Formation of 1,2-Dihydroquinoline-3-carboxylic Acid Derivatives from Methyl 3-(Arylamino)acrylates with Hydrogen Iodide
作者:Shoji Matsumoto、Takahiro Mori、Motohiro Akazome
DOI:10.1055/s-0030-1258229
日期:2010.11
The reaction of methyl 3-(arylamino)acrylates with hydrogen iodide gave 1,2-dihydroquinoline-3-carboxylic acid derivatives at room temperature. This reaction proceeds efficiently in alcoholic solvent; bulky tert-butyl alcohol is the best solvent to give the 1,2-dihydroquinoline derivatives. It is particularly interesting that hydrogen iodide is the most efficient acid to achieve this reaction in tert-butyl
An efficient Pd-catalyzed oxidative coupling of aromatic primary amines and alkenes under molecular oxygen is disclosed. Under mild reaction conditions, it provides a rapid access to (Z)-enamine compounds with exceptional functional group tolerance and excellent regio- and stereoselectivity. This attractive route is of great significance due to its applicability to a wide range of aromatic primary
Encapsulating Au‐Fe
<sub>3</sub>
O
<sub>4</sub>
Nanodots into AIE‐active Supramolecular Assemblies: Ambient Visible‐light Harvesting “Dip‐Strip” Photocatalyst for C−C/C−N Bond Formation Reactions
作者:Harpreet Kaur、Mandeep Kaur、Preet Kamal Walia、Manoj Kumar、Vandana Bhalla
DOI:10.1002/asia.201801556
日期:2019.3.15
nanodots. Supramolecular assemblies of AIE‐active hetero‐oligophenylene derivative 6 served as reactors for the generation of Au‐Fe3O4 nanodots. The as prepared supramolecular ensemble functioned as an efficient recyclable photocatalytic system for C(sp2)−H bond activation of anilines for the construction of quinoline carboxylates. Interestingly, the “dip catalyst” prepared by depositing PTh‐co‐PANI‐6:
本研究证明了由杂-低聚亚苯基衍生物6和Au-Fe 3 O 4纳米点组成的超分子多孔系的发展。AIE活性杂低亚苯基衍生物6的超分子组装体用作生成Au-Fe 3 O 4纳米点的反应器。所制备的超分子集合体用作苯胺的C(sp 2)-H键活化的有效可循环光催化体系,用于构造喹啉羧酸酯。有趣的是,通过沉积制备的“浸渍催化剂” PTH的共同-PANI-6:金-铁3 ö 4 滤纸上的纳米点充当可循环利用的条带(最多10个循环),用于CC / CN键形成反应。