Efficient synthetic protocols for the preparation of common N-heterocyclic carbene precursors
The one-pot condensation of glyoxal, two equivalents of cyclohexylamine, and paraformaldehyde in the presence of aqueous HBF4 provided a straightforward access to 1,3-dicyclohexylimidazolium tetrafluoroborate (ICy·HBF4). 1,3-Dibenzylimidazolium tetrafluoroborate (IBn·HBF4) was obtained along the sam...
Main Authors: | , , , |
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Format: | Article |
Language: | English |
Published: |
Beilstein-Institut
2015-11-01
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Series: | Beilstein Journal of Organic Chemistry |
Subjects: | |
Online Access: | https://doi.org/10.3762/bjoc.11.252 |