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Syntheses of Dianionic α-Iminopyridine Rare-Earth Metal Complexes and Their Catalytic Acitivities toward Dehydrogenative Coupling of Amines with Hydrosilanes.
Inorganic Chemistry ( IF 4.3 ) Pub Date : 2020-06-30 , DOI: 10.1021/acs.inorgchem.0c00907
Xiuli Zhang 1 , Shuangliu Zhou 1 , Xiaofei Fang 1 , Lijun Zhang 1 , Guide Tao 1 , Yun Wei 1 , Xiancui Zhu 1 , Peng Cui 1 , Shaowu Wang 1, 2
Affiliation  

Reactions of [(Me3Si)2N]3RE(μ-Cl)Li(THF)3 with aminomethylene-substituted pyridine 2-[O(CH2CH2)2NCH2CH2NCH2]C5H4N (1) gave the dianionic α-iminopyridine rare-earth metal amido complexes {μ-η2111-2-[O(CH2CH2)2NCH2CH2NCH]C5H4N}2RE2[N(SiMe3)2]2 (RE = Y(2a), La(2b), Pr(2c), Nd(2d), Sm(2e), Dy(2f), Er(2g), and Lu (2h)). However, reaction of [(Me3Si)2N]3Y(μ-Cl)Li(THF)3 with pyridin-2-ylmethyl-substituted amines such as 2-(RNHCH2)C5H4N (R = tBu (3a) and 2,6-iPr2Ph (3b)) or benzyl-substituted amine O(CH2CH2)2NCH2CH2NHCH2C6H5 (5) afforded the corresponding yttrium complexes containing monoanionic ligands [2-(RNCH2)C5H4N]2YN(SiMe3)2 (R = tBu (4a) and 2,6-iPr2Ph (4b)) or [O(CH2CH2)2NCH2CH2NCH2C6H5][(Me3Si)2N)]Y(μ-Cl)(μ-η3-O(CH2CH2)2NCH2CH2NCH2C6H5)Li(THF) (6). Dianionic α-iminopyridine rare-earth metal amido complexes showed high catalytic activities for the dehydrogenation coupling reaction of hydrosilanes and amines providing a variety of silylamines in high yields.

中文翻译:

阳离子型α-亚氨基吡啶稀土金属配合物的合成及其对胺与氢硅烷脱氢偶联的催化活性。

[(Me 3 Si)2 N] 3 RE(μ-Cl)Li(THF)3与氨基亚甲基取代的吡啶2- [O(CH 2 CH 22 NCH 2 CH 2 NCH 2 ] C 5 H 4的反应N(1)得到的双阴离子α-亚氨基吡啶稀土金属络合物酰胺{μ-η 2:σ 1:κ 1:κ 1 -2- [O(CH 2 CH 22 NCH 2 CH 2 NCH]ç 54N} 2 RE 2 [N(SiMe 32 ] 2(RE = Y(2a),La(2b),Pr(2c),Nd(2d),Sm(2e),Dy(2f),Er(2g)和Lu(2h))。但是,[(Me 3 Si)2 N] 3 Y(μ-Cl)Li(THF)3与诸如2-(RNHCH 2)C 5 H 4 N之类的吡啶-2-基甲基取代的胺反应(R = t Bu(3a)和2,6- i Pr 2Ph(3b))或苄基取代的胺O(CH 2 CH 22 NCH 2 CH 2 NHCH 2 C 6 H 55)得到相应的含单阴离子配体的钇配合物[2-(RNCH 2)C 5 H 4 N] 2 YN(SiMe 32(R = t Bu(4a)和2,6- i Pr 2 Ph(4b))或[O(CH 2 CH 22NCH 2 CH 2 NCH 2 C ^ 6 ħ 5 ] [(ME 3 Si)的2 N)] Y(μ-Cl)的(μ-η 3 -O(CH 2 CH 22 NCH 2 CH 2 NCH 2 C ^ 6 ħ 5)Li(THF)(6)。阳离子型α-亚氨基吡啶稀土金属酰胺络合物对高硅烷含量的氢化硅烷和胺的脱氢偶联反应具有很高的催化活性。
更新日期:2020-07-20
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