1) F. J. Uribe-Romo, C. J. Doonan, H. Furukawa, K. Oisaki, O. M. Yaghi, J. Am. Chem. Soc. 2011, 133, 11478, DOI: 10.1021/ja204728y ; Crystalline Covalent Organic Frameworks with Hydrazone Linkages
2) S.Y. Ding, X. Cui, J. Feng, G. Lu, W. Wang, Chem. Commun., 2017,53, 11956-11959, DOI: 10.1039/C7CC05779B ; Facile synthesis of –C[double bond, length as m-dash]N– linked covalent organic frameworks under ambient conditions