TY - JOUR A1 - Su, Ziqi A1 - Zhang, Qi A1 - Zhou, Guangwei A1 - Chen, Qianzhu A1 - Xue, Yahan A1 - Zhang, Lizhu A1 - Yan, Qunsheng A1 - Xu, Juan A1 - Li, Quansong A1 - Li, Jiarong T1 - Unexpected synthesis and structure of a cage-like aza[3,3,3]propllane carbene JF - Beilstein Archives Y1 - 2021/// SN - M3 - doi:10.3762/bxiv.2021.36.v1 N2 - 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. ER -