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Reversible Coupling of Germylone with Isocyanates.
- Source :
-
Chemistry (Weinheim an der Bergstrasse, Germany) [Chemistry] 2024 Apr 25; Vol. 30 (24), pp. e202400613. Date of Electronic Publication: 2024 Mar 21. - Publication Year :
- 2024
-
Abstract
- The germylone dimNHCGe (5, dimNHC=diimino N-heterocyclic carbene) undergoes a [2+2] cycloaddition with isocyanates RNCO (R=4-tolyl or 3,5-xylyl) to furnish novel alkyl carboxamido germylenes 7 (R=4-tolyl) and 8 (R=3,5-xylyl), featuring a C-C bond between the former carbene carbon and the isocyanate moiety. Heating a mixture of 8 with 4-tolyl isocyanate to 100 °C results in isocyanate metathesis, demonstrating reversible C-C bond formation on the reduced germanium compound. DFT calculations suggest that this process occurs via the reductive dissociation of isocyanate from 8 that regenerates the parent Ge(0) compound 5.<br /> (© 2024 The Authors. Chemistry - A European Journal published by Wiley-VCH GmbH.)
Details
- Language :
- English
- ISSN :
- 1521-3765
- Volume :
- 30
- Issue :
- 24
- Database :
- MEDLINE
- Journal :
- Chemistry (Weinheim an der Bergstrasse, Germany)
- Publication Type :
- Academic Journal
- Accession number :
- 38379193
- Full Text :
- https://doi.org/10.1002/chem.202400613