13189-55-4Relevant articles and documents
Cu(II)-silsesquioxanes as efficient precatalysts for Chan-Evans-Lam coupling
Astakhov, G. S.,Bantreil, X.,Bilyachenko, A. N.,Dorovatovskii, P. V.,Khrustalev, V. N.,Lamaty, F.,Levitsky, M. M.,Shubina, E. S.,Zubavichus, Y. V.
, (2020)
Two cage copper(II)silsesquioxanes, namely, tricopper complex (PhSiO1.5)8(CuO)3(TMEDA)2*(MeCN)3 Cu-1 and hexacopper complex (MeSiO1,5)12(CuO)6(Py)6*TMEDA Cu
Ligand-Controlled C?O Bond Coupling of Carboxylic Acids and Aryl Iodides: Experimental and Computational Insights
Li, Li,Song, Feifei,Zhong, Xiumei,Wu, Yun-Dong,Zhang, Xinhao,Chen, Jiean,Huang, Yong
supporting information, p. 126 - 132 (2019/11/28)
Palladium-catalyzed cross-coupling reactions between carboxylic acids and aryl halides have several possible competitive pathways. Decarboxylative C?C bond coupling and C?H arylation are well established in the literature. However, direct C?O bond coupling between carboxylic acids and aryl halides has received little success. In this report, we describe a protocol for exclusive C?O bond formation, enabled by a bidentate N,N-ligand such as 1,10-phenanthroline. The reaction is general for a broad range of carboxylic acids and iodoarenes. Experimental evidence and computational results suggest a high energy barrier for the alternative pathway of decarboxylative carbon-carbon bond coupling. (Figure presented.).
Palladium-catalyzed non-directed C[sbnd]H benzoxylation of simple arenes with iodobenzene dibenzoates
Li, Li,Wang, Ying,Yang, Tingting,Zhang, Qian,Li, Dong
supporting information, p. 5859 - 5863 (2016/12/09)
A palladium-catalyzed non-directed C[sbnd]H benzoxylation of simple arenes with iodobenzene dibenzoates as both benzoxylate source and oxidant has been developed. The catalytic system was greatly promoted by a pyridine ligand. Good functional groups tolerance was showed in both hypervalent iodine reagents and arene substrates, which can be used for synthesis of aryl benzoates through simple aromatic compounds.
