Synthesis,characterization of amine-bridged bis (phenolate) yttrium alkyl complex and its catalytic behavior for the Tishchenko reaction  

作　　者：PANG MingLun YAO YingMing ZHANG Yong SHEN Qi 

机构地区：[1]Key Laboratory of Organic Synthesis of Jiangsu Province, Department of Chemistry and Chemical Engineering, Dushu Lake Campus, Suzhou University, Suzhou 215123, China

出　　处：《Chinese Science Bulletin》2008年第13期1978-1982,共5页

基　　金：the National Natural Science Foundation of China (Grant Nos.20771078 and 20632040);Natural Science Foundation of Jiangsu Province (Grant No. BK2007505);Major Basic Research Project of the Natural Science Foundation of the Jiangsu Higher Education Institutions (Grant No.07KJA15014)

摘　　要：Reaction of homoleptic yttrium tris-alkyl complex YR3 (R=CH2C6H4NMe2-o) with 1 equivalent of amine bis(phenol)s LH2 (L=Me2NCH2CH2N(CH2-(2-O-C6H2-But2-3,5))2) afforded the solvent-free yttrium alkyl complex LYR (1),which has been characterized with elemental analysis,1H NMR and IR spectra,and structural determination. The coordination geometry around the center metal atom can be best de-scribed as a distorted octahedron. It was found that complex 1 can be used as an efficient catalyst for the Tishchenko reaction.Reaction of homoleptic yttrium tris-alkyl complex YR3 （R=CH2C6H4NMe2-o） with 1 equivalent of amine bis（phenol）s LH2 （L=Me2NCH2CH2N（CH2-（2-O-C6H2-Bu^t 2-3,5））2） afforded the solvent-free yttrium alkyl complex LYR （1）, which has been characterized with elemental analysis, 1H NMR and IR spectra, and structural determination. The coordination geometry around the center metal atom can be best described as a distorted octahedron. It was found that complex 1 can be used as an efficient catalyst for the Tishchenko reaction.

关 键 词：酚盐 稀土 配位体 烷基 催化作用 

分 类 号：O643.3[理学—物理化学]