A stable, propeller-like N-heterocyclic cage carbene with a protective umbrella was unexpectedly synthesized in the hydrogen proton transfer catalytic hydrogenolysis. Its structural and spectral characteristics are obviously different from those of conventional imidazolin-2-ylidenes. Two nitrogen atoms of aza[3,3,3] propllenan-2-ylidene ring are in a plane environment.
Keywords: NHC-carbene; stable; synthesis; structure; aza[3,3,3]propllane
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Su, Z.; Zhang, Q.; Zhou, G.; Chen, Q.; Xue, Y.; Zhang, L.; Yan, Q.; Xu, J.; Li, Q.; Li, J. Beilstein Arch. 2021, 202136. doi:10.3762/bxiv.2021.36.v1
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