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Synthesis, structure, and alkyne insertion of a mixed-sandwich zirconacarborane alkyl
Alternative Title锆碳硼烷-烷基化合物的合成、结构及炔烃插入反应
Liu DM(刘冬梅)1; Qiu ZZ(邱早早)1; Xie ZW(谢作伟)1
Source PublicationInorg. Chem. Front.
AbstractA neutral mixed-sandwich zirconacarborane alkyl [eta(1):sigma:eta(5)-{MeN(CH2)CH2CH2}C2B9H10]Zr(eta(5)-Cp '') (Cp '' = 1,3-(Me3Si)(2)C5H3) was prepared via methane elimination reaction of 7-Me2N(H)CH2CH2-7,8-C2B9H11 with (eta(5)-Cp '')ZrMe3, followed by an intramolecular C-H activation. It reacted with internal alkynes and trimethylsilylacetylene to give the Zr-C s bond mono-insertion products; however, the terminal alkyne 3,3dimethyl- 1-butyne underwent an acid-base reaction to produce a zirconium alkynyl complex. Both electronic and steric factors affected the regioselectivity of the insertion process. The results showed that the coordination of the sidearm nitrogen atom could enhance the thermal stability of the resulting zirconacarborane alkyl, and on the other hand, lowered the Lewis acidity of the Zr atom, leading to relatively poor reactivity. All complexes were fully characterized by NMR spectroscopy and elemental analyses. Most of them were further confirmed by single-crystal X-ray analyses.
Subject Area金属有机化学
Indexed BySCI
WOS IDWOS:000364547300007
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorXie ZW(谢作伟)
2.中科院上海有机化学研究所, 沪港合成化学联合实验室
Recommended Citation
GB/T 7714
Liu DM,Qiu ZZ,Xie ZW. Synthesis, structure, and alkyne insertion of a mixed-sandwich zirconacarborane alkyl[J]. Inorg. Chem. Front.,2015,2(5):467-472.
APA 刘冬梅,邱早早,&谢作伟.(2015).Synthesis, structure, and alkyne insertion of a mixed-sandwich zirconacarborane alkyl.Inorg. Chem. Front.,2(5),467-472.
MLA 刘冬梅,et al."Synthesis, structure, and alkyne insertion of a mixed-sandwich zirconacarborane alkyl".Inorg. Chem. Front. 2.5(2015):467-472.
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