Carbene‐Stabilized Dithiolene (L 0 ) Zwitterions

Carbene‐Stabilized Dithiolene (L 0 ) Zwitterions
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卡宾 - 稳定的二硫醇 (L 0 ) 两性离子

DOI:
10.1002/anie.202108498
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发表时间:
2021
期刊:
Angewandte Chemie International Edition
影响因子:
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通讯作者:
Robinson, Gregory H.
Robinson, Gregory H.
中科院分区:
--
文献类型:
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作者:
Wang, Yuzhong;Tran, Phuong M.;Xie, Yaoming;Wei, Pingrong;Glushka, John N.;Schaefer, Henry F.;Robinson, Gregory H.

文献摘要

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研究了刘易斯碱与咪唑基二聚体(1)之间的一系列反应。环(烷基)(氨基)卡宾(CAAC)(2)和N-杂环卡宾(NHC)(4),以及N-杂环亚甲硅烷基(NHSi)(6),都证明了能够裂解1中的硫-硫键,分别得到卡宾稳定的二硫杂环戊烯(L0)两性离子(3和5)和螺环硅-二硫杂环戊烯化合物(7)。从实验和理论两方面探讨了3、5和7的成键性质。
A series of reactions between Lewis bases and an imidazole‐based dithione dimer (1) has been investigated. Both cyclic(alkyl)(amino)carbene (CAAC) (2) and N‐heterocyclic carbene (NHC) (4), in addition to N‐heterocyclic silylene (NHSi) (6), demonstrate the capability to cleave the sulphur–sulphur bonds in1, giving carbene‐stabilized dithiolene (L0) zwitterions (3and5) and a spirocyclic silicon–dithiolene compound (7), respectively. The bonding nature of3,5, and7are probed by both experimental and theoretical methods.