Isomerization of Cyclooctadiene to Cyclooctyne with a Zinc/Zirconium Heterobimetallic Complex.

Isomerization of Cyclooctadiene to Cyclooctyne with a Zinc/Zirconium Heterobimetallic Complex.
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DOI:
10.1002/anie.201601758
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发表时间:
2016-06-06
影响因子:
16.6
通讯作者:
Crimmin, Mark R.
Crimmin, Mark R.
中科院分区:
化学1区
文献类型:
--
作者:
Butler, Michael J.;White, Andrew J. P.;Crimmin, Mark R.

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锌/锆异双金属络合物与1,5-环辛二烯(1,5-COD)反应,可缓慢异构化为1,3-环辛二烯(1,3-COD),并生成一种新的络合物,其中包括连接两个金属中心的环辛炔配体。类似的镁/锆和铝/锆异双金属络合物能够催化1,5-COD异构化为1,3-COD,但只有在锌物种的情况下才能观察到环辛炔加合物。
Reaction of a zinc/zirconium heterobimetallic complex with 1,5‐cyclooctadiene (1,5‐COD) results in slow isomerization to 1,3‐cyclooctadiene (1,3‐COD), along with the formation of a new complex that includes a cyclooctyne ligand bridging two metal centers. While analogous magnesium/zirconium and aluminum/zirconium heterobimetallic complexes are competent for the catalytic isomerization of 1,5‐COD to 1,3‐COD, only in the case of the zinc species is the cyclooctyne adduct observed.
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