3 + 2]-dipolar cycloaddition reactions of an N-heterocyclic carbene boryl azide |
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| Authors: | Merling Everett Lamm Vladimir Geib Steven J Lacôte Emmanuel Curran Dennis P |
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| Institution: | Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA. |
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| Abstract: | Thermal 1,3-dipolar cycloaddition reactions of 1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene dihydridoboron azide occur smoothly with alkynes, nitriles, and alkenes bearing electron-withdrawing groups. New, stable NHC-boryl-substituted triazoles, tetrazoles, and triazolidines are formed in good to excellent yields. |
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