An experimental and theoretical study into the facile, homogenous (N-heterocyclic carbene)(2)-Pd(0) catalyzed diboration of internal and terminal alkynes

Ansell Melvyn B.; da Silva Vitor H. Menezes; Heerdt GabrielBraga Ataualpa A. C.Spencer JohnNavarro Oscar

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An experimental and theoretical study into the facile, homogenous (N-heterocyclic carbene)(2)-Pd(0) catalyzed diboration of internal and terminal alkynes

机译：实验和理论研究肤浅的,同质(氮杂碳烯)(2)pd(0)催化diboration内部和终端炔烃

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Pd(ITMe)(2)(PhC CPh) acts as a highly reactive pre-catalyst in the unprecedented homogenous catalyzed diboration of terminal and internal alkynes, yielding a number of novel and known syn-1,2-diborylalkenes in a 100% stereoselective manner. DFT calculations suggest that a similar reaction pathway to that proposed for platinum phosphine analogues is followed, and that destabilization of key intermediates by the NHCs is vital to the overall success for the palladium-catalyzed B-B addition to alkynes.

机译：Pd(时候)(2)(PhC CPh)作为高活性pre-catalyst前所未有的同质催化diboration终端和内部炔烃,产生许多小说和已知的syn-1, 2-diborylalkenes立体选择100%的方式。提出了铂的反应途径磷化氢类似物之后,不稳定nhc的关键中间体至关重要的总体成功吗钯催化的b炔烃。

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来源
《Catalysis science & technology》 |2016年第20期|7461-7467|共7页
作者
Ansell Melvyn B.; da Silva Vitor H. Menezes; Heerdt GabrielBraga Ataualpa A. C.Spencer JohnNavarro Oscar;
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作者单位

Univ Sussex, Dept Chem, Brighton BN1 9QJ, E Sussex, England;

Univ Sao Paulo, Inst Quim, Dept Quim Fundamental, Ave Prof Lineu Prestes 748, BR-05508000 Sao Paulo, Brazil;

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正文语种英语
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关键词
alkynes; Theoretical Study; HeterogeneousB ADDITIONSDevice TerminalDESTABILIZATIONInternal;

机译：炔烃;理论研究;HeterogeneousBADDITIONSDevice TerminalDESTABILIZATIONInternal;

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An experimental and theoretical study into the facile, homogenous (N-heterocyclic carbene)(2)-Pd(0) catalyzed diboration of internal and terminal alkynes

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