Catalysis letters

An Easily Prepared Tetraphosphine and Its Use in the Palladium-Catalyzed Suzuki–Miyaura Coupling of Aryl Chlorides

K Wang, W Wang, H Luo, X Zheng, H Fu, H Chen, R Li

Index: Wang, Kun; Wang, Wei; Luo, Heng; Zheng, Xueli; Fu, Haiyan; Chen, Hua; Li, Ruixiang Catalysis Letters, 2013 , vol. 143, # 11 p. 1214 - 1219

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Abstract

Abstract An air-stable tetraphosphine N, N, N′, N′-tetra (diphenylphosphinomethyl)- benzene-1, 3-diamine (L3) was easily prepared in two steps from triphenylphosphine, which in combination with [Pd (η 3-C 3 H 5) Cl] 2 affords an efficient catalyst for Suzuki–Miyaura coupling of activated chloroarenes. Even at high temperature of 130á░ C, this catalyst exhibits good stability and longevity, and could allow a high turnover number of 680,000 ...