闪光通讯：n -杂环卡宾镍介导的取代乙烯基环丁烷的C-C活化

IF 2.5 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Organometallics Pub Date : 2025-05-28 DOI:10.1021/acs.organomet.5c0013010.1021/acs.organomet.5c00130

Cherish Nie, Marina Pérez-Jiménez, Junho Kim and Paul J. Chirik*,

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引用次数: 0

摘要

考察了[(IPr)Ni(0)] (IPr =（1,3-二（2,6-二异丙基苯基）咪唑-2-基二烯）配合物对三取代乙烯基环丁烷的C-C活化作用。1,2-二环丁烯乙烯和β-石蜡烯在常温下以[(IPr)Ni(0)]氧化开环，生成可分离的7元烷基、烯丙基金属环。相反，含有末端烯烃的β-石竹烯衍生物在加热到80℃时形成了可分离的镍-二（烯烃）配合物，该配合物仅部分转化为金属循环。

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Flash Communication: N-Heterocyclic Carbene Nickel-Mediated C–C Activation of Substituted Vinylcyclobutanes

The C–C activation of three substituted vinylcyclobutanes by [(IPr)Ni(0)] (IPr = ((1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene) complexes was evaluated. Both 1,2-dicyclobutylethylene and β-caryophyllene underwent oxidative ring-opening with [(IPr)Ni(0)] to furnish isolable 7-membered alkyl, allyl-metallacycles at ambient temperature. In contrast, a derivative of β-caryophyllene bearing terminal alkenes resulted in formation of an isolable nickel bis(olefin) complex that exhibited only partial conversion to the metallacycle upon heating to 80 °C.

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来源期刊

Organometallics 化学-无机化学与核化学

CiteScore

5.60

自引率

7.10%

发文量

382

审稿时长

1.7 months

期刊介绍： Organometallics is the flagship journal of organometallic chemistry and records progress in one of the most active fields of science, bridging organic and inorganic chemistry. The journal publishes Articles, Communications, Reviews, and Tutorials (instructional overviews) that depict research on the synthesis, structure, bonding, chemical reactivity, and reaction mechanisms for a variety of applications, including catalyst design and catalytic processes; main-group, transition-metal, and lanthanide and actinide metal chemistry; synthetic aspects of polymer science and materials science; and bioorganometallic chemistry.