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Issue 21, 2020
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1,2-Insertion reactions of alkynes into Ge–C bonds of arylbromogermylene

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Abstract

1,2-Insertion reactions of alkynes into the Ge–C bonds in dibromodigermenes afford stable crystalline bromovinylgermylenes. In contrast to previously reported Lewis-base-supported vinylgermylenes, the bromovinylgermylene obtained from reaction of the bromogermylene with 3-hexyne via such an 1,2-insertion is a donor-free monomer. A feasible reaction mechanism, proposed on the basis of the observed experimental results in combination with theoretical calculations, suggests that the [1+2]-cycloadduct and the insertion product are the kinetic and thermodynamic product, respectively.

Graphical abstract: 1,2-Insertion reactions of alkynes into Ge–C bonds of arylbromogermylene

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Supplementary files

Article information


Submitted
02 Apr 2020
Accepted
05 May 2020
First published
05 May 2020

Dalton Trans., 2020,49, 7189-7196
Article type
Paper

1,2-Insertion reactions of alkynes into Ge–C bonds of arylbromogermylene

T. Sugahara, A. Espinosa Ferao, A. Rey Planells, J. Guo, S. Aoyama, K. Igawa, K. Tomooka, T. Sasamori, D. Hashizume, S. Nagase and N. Tokitoh, Dalton Trans., 2020, 49, 7189
DOI: 10.1039/D0DT01223H

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