Highly Efficient Hydrophosphonylation of Aldehydes and Unactivated Ketones Catalyzed by Methylene??Linked Pyrrolyl Rare Earth Metal Amido Complexes

S Zhou, Z Wu, J Rong, S Wang, G Yang…

Index: Zhou, Shuangliu; Wu, Zhangshuan; Rong, Jiewei; Wang, Shaowu; Yang, Gaosheng; Zhu, Xiancui; Zhang, Lijun Chemistry - A European Journal, 2012 , vol. 18, # 9 p. 2653 - 2659

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Citation Number: 36

Abstract

Abstract A series of rare earth metal amido complexes bearing methylene-linked pyrrolyl- amido ligands were prepared through silylamine elimination reactions and displayed high catalytic activities in hydrophosphonylations of aldehydes and unactivated ketones under solvent-free conditions for liquid substrates. Treatment of [(Me 3 Si) 2 N] 3 Ln (μ-Cl) Li (THF) 3 with 2-(2, 6-Me 2 C 6 H 3 NHCH 2) C 4 H 3 NH (1, 1 equiv) in toluene afforded the ...