Construction of a Metallacyclopentadiene Ring through the Attack of Carbanions to M≡C Bond Followed by C

Construction of a Metallacyclopentadiene Ring through the Attack of Carbanions to M≡C Bond Followed by C—H Activation

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外文摘要：Metallacyclopentadienes are important metallacycles and regarded as intermediates in many reactions,therefore,new methods to achieve them are anticipated.In this study,a formal[3+2]method,through the reactions of an osmapentalyne with benzyl carbani-ons,was developed.The reactions underwent a nucleophilic attack of carbanions to the Os≡C bond,followed by C—H activation to form the five-membered osmacyclopentadiene ring.Most of the reactions were carried out at room temperature,the substituents on the aromatic rings of benzyl carbanions are diverse,and the resulting products contain an Os—H bond,representing a novel type of 1OC-carbolong complexes.This work provides a new convenient route to construct metallacyclopentadienes,which is expected to further promote the development of such á type of substances.

外文关键词：

MetallacyclopentadieneCarbolong chemistryOsmiumC-H activationNucleophilic addition

作者：

Chun Tang、Shengjie Zhang、Zhengyu Lu、Qian Li、Ming Luo、Dafa Chen、Haiping Xia

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作者单位：

State Key Laboratory of Physical Chemistry of Solid Surfaces,College of Chemistry and Chemical Engineering,Collaborative Innovation Center of Chemistry for Energy Materials,Xiamen University,Xiamen,Fujian 361005,China

Shenzhen Grubbs Institute and Guangdong Provincial Key Laboratory of Catalysis,Department of Chemistry,Southern University of Science and Technology,Shenzhen,Guangdong 518055,China

基金：

国家自然科学基金国家自然科学基金国家自然科学基金Guangdong Provincial Key Laboratory of CatalysisShenzhen Science and Technology Innovation CommitteeIntroduction of Major Talent Projects in Guangdong ProvinceOutstanding Talents Training Fund in Shenzhen

项目编号：

2207109821931002221011232020B121201002JCYJ202001091408123022019CX01C079

出版年：

2024

DOI：

10.1002/cjoc.202300476

中国化学(英文版)

中国化学会上海有机化学研究所

中国化学(英文版)

CSTPCD

影响因子：0.848

ISSN：1001-604X

年,卷(期)：2024.42(3)

参考文献量58