NDLI: Efficient symmetrical bidentate dioxime ligand-accelerated homogeneous palladium-catalyzed Suzuki–Miyaura coupling reactions of aryl chlorides

Content Provider	Royal Society of Chemistry (RSC)
Author	Han, Huatao Song, Jinyi Liu, Yang Chu, Wenyi Zhao, Hongyan Li, Zhuofei Sun, Zhizhong
Copyright Year	2017
Abstract	A series of N,O-bidentate ligands were synthesized using the Vilsmeier–Haack reaction and oximation. 2,5-Dihydroxyterephthalaldehyde dioxime (L8) as an efficient N,O-symmetrical bidentate ligand was prepared from hydroquinone. It was studied as a high activity ligand for palladium-catalyzed Suzuki–Miyaura cross-coupling reactions of aryl chlorides with arylboronic acids under mild conditions. The coupling reactions were performed in the presence of PdCl2 as the catalyst, L8 as the ligand, Na2CO3 as the base, PEG-400 as the PTC and in ethanol/water (1 : 1) as an environmentally benign solvent at 85 °C. Plentiful biaryls were obtained by the optimized reaction with good yields at a low palladium loading of 0.20 mol%.
Starting Page	372
Ending Page	376
Page Count	5
File Format	HTM / HTML PDF
ISSN	11440546
Volume Number	41
Issue Number	1
Journal	New Journal of Chemistry
DOI	10.1039/c6nj02815b
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Hydroquinone Haack Ethanol Ligand Suzuki Denticity Vilsmeier\u2013Haack reaction Aryl Solvent PTC
Content Type	Text
Resource Type	Article
Subject	Chemistry Materials Chemistry Catalysis

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Efficient symmetrical bidentate dioxime ligand-accelerated homogeneous palladium-catalyzed Suzuki–Miyaura coupling reactions of aryl chlorides