Palladium- and Nickel-Catalyzed Aminations of Aryl Imidazolylsulfonates and Sulfamates
作者:Lutz Ackermann、René Sandmann、Weifeng Song
DOI:10.1021/ol200267b
日期:2011.4.1
A nickel complex derived from dppf, along with NaOt-Bu as the base, allowed for challenging aminations of aryl sulfamates. An improved functional group tolerance is observed in novel palladium-catalyzed aminations of imidazolylsulfonates with rac-BINAP as the ligand.
衍生自dppf的镍络合物以及NaO t -Bu作为碱,可实现富挑战性的氨基磺酸氨基酯的胺化反应。以rac -BINAP为配体的新型钯催化的咪唑基磺酸盐胺化反应观察到官能团耐受性提高。
Copper-Catalyzed Selective Oxidative Acylation of Secondary Anilines with Ethyl Glyoxalate: Domino Synthesis of Indoline-2,3-diones
作者:Tao Liu、Haijun Yang、Yuyang Jiang、Hua Fu
DOI:10.1002/adsc.201300044
日期:2013.4.15
A novel, easy and useful copper‐catalyzed selective acylation of secondary anilines with ethylglyoxalate has been developed, and the corresponding indoline‐2,3‐dione derivatives were prepared. The procedure comprises the sequential intermolecular copper‐catalyzed selective oxidative ortho‐site aromatic acylation of the NH group in secondary anilines and intramolecular nucleophilic attack of the NH
Direct Intermolecular Aniline <i>Ortho-</i>Arylation via Benzyne Intermediates
作者:Thanh Truong、Olafs Daugulis
DOI:10.1021/ol302875x
日期:2012.12.7
A method for direct, transition-metal-free ortho-arylation of anilines by aryl chlorides, bromides, fluorides, and triflates has been developed. This methodology provides the most direct approach to 2-arylanilines since no protecting or directing groups on nitrogen are required. The arylation is functional-group tolerant, with alkene, ether, trifluoromethyl, dimethylamino, carbonyl, chloro, and cyano
已经开发了一种通过芳基氯化物、溴化物、氟化物和三氟甲磺酸酯对苯胺进行直接、不含过渡金属的邻位芳基化的方法。这种方法提供了最直接的 2-芳基苯胺方法,因为不需要氮上的保护或导向基团。芳基化是官能团耐受的,可以耐受烯烃、醚、三氟甲基、二甲氨基、羰基、氯和氰基官能团。对映体纯联萘二胺的苯基化提供具有>99% ee 的产物。