22. Tingting Liu, Kaikai Wu, Liandi Wang, Hongjun Fan,* Yong-Gui Zhou,* and Zhengkun Yu.* Assembled Multinuclear Ruthenium(II)-NNNN Complexes: Synthesis, Catalytic Properties, and DFT Calculations. Organometallics 2020, 39, 93-104.

21. Tingting Liu, Kaikai Wu, Liandi Wang, and Zhengkun Yu.* Potassium tert-Butoxide-Promoted Acceptorless Dehydrogenation of N-Heterocycles. Adv. Synth. Catal. 2019, 361, 3958-3964.

20. Yuan He, Jiang Lou, Kaikai Wu, Hongmei Wang,* and Zhengkun Yu.* Copper-Catalyzed Radical C-C Bond Cleavage and [4+1] Annulation Cascade of Cycloketone Oxime Esters with Enaminothiones. J. Org. Chem. 2019, 84, 2178-2190.

19. Tingting Liu, Liandi Wang, Kaikai Wu, and Zhengkun Yu.* Manganese-Catalyzed β-Alkylation of Secondary Alcohols with Primary Alcohols under Phosphine-Free Conditions. ACS Catal.2018, 8, 7201-7207.

18. Ping Wu, Kaikai Wu, Liandi Wang, and Zhengkun Yu.* Iron-Promoted Difunctionalization of Alkenes by Phenylselenylation/ 1,2-Aryl Migration. Org. Lett. 2017, 19, 5450-5453.

17. Jiang Lou, Quannan Wang, Kaikai Wu, Ping Wu, and Zhengkun Yu.* Iron-Catalyzed Oxidative C-H Functionalization of Internal Olefins for the Synthesis of Tetrasubstituted Furans. Org. Lett. 2017, 19, 3287-3290.

16. Quannan Wang, Jiang Lou, Ping Wu, Kaikai Wu, and Zhengkun Yu.* Iron-Mediated Oxidative C-H Alkylation of S,S-Functionalized Internal Olefins via C(sp²)-H/C(sp³)-H Cross-Coupling. Adv. Synth. Catal. 2017, 359, 2981-2998.

15. Kaikai Wu, Wei He, Chenglin Sun, and Zhengkun Yu.* Scalable synthesis of secondary and tertiary amines by heterogeneous Pt-Sn/g-Al₂O₃ catalyzed N-alkylation of amines with alcohols. Tetrahedron 2016, 72, 8516-8521.

14. Kaikai Wu, Wei He, Chenglin Sun, and Zhengkun Yu.* Bimetallic Pt–Sn/g-Al₂O₃ catalyzed β-alkylation of secondary alcohols with primary alcohols under solvent-free conditions. Tetrahedron Lett. 2016, 57, 4017-4020.

13. Qingfu Wang, Kaikai Wu, and Zhengkun Yu.* Ruthenium(III)-Catalyzed β‑Alkylation of Secondary Alcohols with Primary Alcohols. Organometallics 2016, 35, 1251-1256.

12. Quanbin Jiang, Tenglong Guo, Kaikai Wu, and Zhengkun Yu.* Rhodium(III)-catalyzed sp² C–H bond addition to CF₃-substituted unsaturated ketones. Chem. Commun. 2016, 52, 2913-2915.

11. Kaikai Wu, Ping Wu, Jiping Chen, Chenglin Sun, and Zhengkun Yu.* Brøsted Acid-Promoted Cascade Alkylation/Cyclization of Pyrroles with N,N-Dimethylaminomethyleneglutaconic Acid Dinitrile: A Concise Route to Cyclopenta[b]pyrroles. Adv. Synth. Catal. 2015, 357, 3353-3358.

10. Xiaoge Yang, Kaikai Wu, Ping Wu, Jiping Chen, Chenglin Sun, and Zhengkun Yu.* Brønsted Acid-Mediated Annulation of α-Oxo Ketene Dithioacetals with Pyrroles: Efficient Synthesis of Structurally Diverse Cyclopenta[b]pyrroles. Chem. Eur. J. 2015, 21, 9323-9327.

9. Xiaoge Yang, Kaikai Wu, and Zhengkun Yu.* BF₃·OEt₂-mediated alkenylation of pyrroles with α-oxo ketene dithioacetals. Tetrahedron Lett. 2015, 56, 4490-4493.

8. Ping Wu, Liandi Wang, Kaikai Wu, and Zhengkun Yu.* Brønsted Acid Catalyzed PhSe Transfer versus Radical Aryl Transfer: Linear Codimerization of Styrenes and Internal Olefins. Org. Lett. 2015, 17, 868-871.

7. Kaikai Wu, Ping Wu, Liandi Wang, Jiping Chen, Chenglin Sun, and Zhengkun Yu.* Tunable Brøsted Acidity-Dependent Alkylation and Alkenylation of Indoles. Adv. Synth. Catal. 2014, 356, 3871-3880.

6. Mengyao Yin, Songbo He,* Zhengkun Yu, Kaikai Wu, Liandi Wang, and Chenglin Sun. Effect of alumina support on catalytic performance of Pt-Sn/Al₂O₃ catalysts in one-step synthesis of N-phenylbenzylamine from aniline and benzyl alcohol. Chin. J. Catal. 2013 34, 1534-1542.

5. Wei He, Songbo He, Chenglin Sun, Kaikai Wu, Liandi Wang, and Zhengkun Yu.* Heterogeneous Bimetallic Pt-Sn/γ-Al₂O₃ Catalyzed N-Alkylation of Amines: Efficient Synthesis of Secondary and Tertiary Amines. Chin. J. Catal. 2012, 33, 717-722.

4. Wei He, Liandi Wang, Chenglin Sun, Kaikai Wu, Songbo He, Jiping Chen, Ping Wu, and Zhengkun Yu.* Pt–Sn/g-Al₂O₃-Catalyzed Highly Efficient Direct Synthesis of Secondary and Tertiary Amines and Imines. Chem. Eur. J. 2011, 17, 13308-13317.

3. Liandi Wang, Wei He, Kaikai Wu, Songbo He, Chenglin Sun, and Zhengkun Yu.* Heterogeneous bimetallic Pt–Sn/g-Al₂O₃ catalyzed direct synthesis of diamines from N-alkylation of amines with diols through a borrowing hydrogen strategy. Tetrahedron Lett. 2011, 52, 7103-7107.

2. Wenjing Ye, Miao Zhao, Wangming Du, Quanbin Jiang, Kaikai Wu, Ping Wu, and Zhengkun Yu.* Highly Active Ruthenium(II) Complex Catalysts Bearing an Unsymmetrical NNN Ligand in the (Asymmetric) Transfer Hydrogenation of Ketones. Chem. Eur. J. 2011, 17, 4737-4741.

1. Weiqiang tan, Zhengkun Yu,* Bing Liu, Kaikai Wu, Zishuang Liu, and Jinzhu Chen. Synthesis and structural characterization of (CH₂)n-bridged indenyl-pyrazoles and their cyclopentadienyl nickel(II) complexes. J. Organomet. Chem. 2009, 694, 199-206..