Release of Isonitrile- and NHC-Stabilized Borylenes from Group VI Terminal Borylene Complexes

Chemistry : a European Journal
Marco NutzHolger Braunschweig

Abstract

A family of doubly isonitrile-stabilized terphenyl borylenes could be obtained by addition of three equivalents of isonitrile to the corresponding Cr and W terminal terphenyl-borylene complexes. The mechanism of isonitrile- and carbon-monoxide-induced borylene liberation was investigated computationally and found to be significantly exergonic in both cases. Furthermore, addition of a small N-heterocyclic carbene (NHC) to a terminal Cr borylene complex results in release of an NHC-stabilized borylene carbonyl species, whereas the analogous reaction with bulkier phosphines results in metal-centered substitution.

References

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Citations

Oct 19, 2019·Angewandte Chemie·Zhenguo HuangHolger Braunschweig
Jun 12, 2019·Chemical Science·Merle ArrowsmithHolger Braunschweig
Nov 26, 2020·Dalton Transactions : an International Journal of Inorganic Chemistry·Bret B MachaHolger Braunschweig
Nov 17, 2020·Angewandte Chemie·Maximilian RangHolger Braunschweig
Jun 15, 2021·Chemical Science·Conor PranckeviciusHolger Braunschweig
Jul 27, 2018·Journal of the American Chemical Society·Conor PranckeviciusHolger Braunschweig

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