Iron-Catalyzed Direct C3-Benzylation of Indoles with Benzyl Alcohols through Borrowing Hydrogen
作者:Giovanni Di Gregorio、Michele Mari、Francesca Bartoccini、Giovanni Piersanti
DOI:10.1021/acs.joc.7b01603
日期:2017.8.18
We present the coupling of primary and secondary benzylalcohols with indoles to form 3-benzylated indoles and H2O that is catalyzed, for the first time, by a complex of earth-abundant iron. This transformation accommodates a variety of substrates and is distinguished by its operational simplicity, sustainability, high functional-group tolerance, and amenability to gram-scale synthesis. On the basis
Photoredox-Catalyzed Decarboxylative Cross-Coupling Reaction to Synthesis Unsymmetrical Diarylmethanes
作者:Guozhe Guo、Yuquan Zhang、Yanchun Li、Zhijun Li
DOI:10.3390/molecules29092156
日期:——
The photoredox-catalyzed decarboxylative cross-coupling reaction of aryl acetic acids and aryl nitriles has been achieved under an argon atmosphere in high yields. This method provides a fast way to obtain prevalent aryl acetic acids from an abundant natural source. A tentative radical mechanism has been proposed.
Involving Single-Atom Silver(0) in Selective Dehalogenation by AgF under Visible-Light Irradiation
作者:Wenli Wu、Enxin Cui、Yun Zhang、Chen Zhang、Feng Zhu、Chen-Ho Tung、Yifeng Wang
DOI:10.1021/acscatal.9b01929
日期:2019.7.5
The dehalogenation-arylation and the hydro-dehalogenation of various types of organic halides are selectively realized using AgF and visible light without any organic additives under mild conditions. Single-atom silver(0) (denoted as SAAg) serves as the catalytically active center, and the TOF of SAAg reaches 6000 h(-1). This elusive activity of Ag is beyond that expected from its ionic, nano, or bulk forms.