Kai-Kai Wang, Yan-Li Li, Zhan-Yong Wang, Meng-Wei Hu, Ting-Ting Qiu and Bao-Ku Zhu
Org. Biomol. Chem., 2019,17, 244-247
DOI:
10.1039/C8OB02932F,
Communication
A cross 1,3-dipolar cycloaddition of two different ylides between C,N-cyclic azomethine imines with an in situ-generated nonstabilized azomethine ylide from an N-benzyl precursor was realized. The reactions afforded a clean and facile access to diverse fused tricyclic 1,2,4-hexahydrotriazines in high yields (up to 96%). The chemical structures of the typical compounds were confirmed by X-ray single-crystal structure analysis.