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One-step synthesis of benzo[g]phthalazines and naphtho[2,3-g]phthalazines from benzo- or naphtho-oxabicyclic alkene
- Kong, Kundi, Zhang, Jie, Zhao, Peng, Lu, Huali, Chen, Zhijun, Cao, Weiguo, Chen, Jie, Chen, Yali
- Tetrahedron 2017
- ambient temperature, chemical structure, cycloaddition reactions, organic compounds, thermal properties
- An efficient protocol for one-step synthesis of oxadisilole-fused benzo[g]phthalazines and naphtho[2,3-g]phthalazines by the Diels-Alder reactions and denitrogenation/deoxygenation aromatization reactions of benzo- or naphtho-oxabicyclic alkene with 3,6-diaryl-1,2,4,5-tetrazines in THF at room temperature for 3 h. The photophysical, redox, and thermal properties of these compounds have been determined. The proposed mechanism was also studied.