Synthesis, X-ray crystal structure, and reactivity of Y(MAC)(CH2SiMe3)(2) (MAC equals deprotonated aza-18-crown-6)

被引:74
作者
Lee, L
Berg, DJ
Einstein, FW
Batchelor, RJ
机构
[1] UNIV VICTORIA,DEPT CHEM,VICTORIA,BC V8W 3V6,CANADA
[2] SIMON FRASER UNIV,DEPT CHEM,BURNABY,BC V5A 1S6,CANADA
关键词
D O I
10.1021/om960708f
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The yttrium dialkyl trans-Y(MAC)(CH2SiMe3)(2) (1; MAC = deprotonated aza-18-crown-6) has been isolated and characterized (NMR and X-ray). Complex 1 exhibits high stability toward ligand redistribution and metalation, reacts with CO to form a trans-bis-(enolate) by silyl migration, and undergoes alkyl abstraction by B(C6F5)(3) to generate the highly unstable cation [Y(MAC)(CH2SiMe3)](+)[B(C6F5)3(CH2SiMe3)](-), in situ.
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页码:1819 / 1821
页数:3
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