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[2] For selected reviews on dearomatization reaction, see: (a) Zhuo, C.-X.; Zheng, C.; You, S.-L. Acc. Chem. Res. 2014, 47, 2558. (b) Sun, W.; Li, G.; Hong, L.; Wang, R. Org. Biomol. Chem. 2016, 14, 2164. (c) Wu, W.-T.; Zhang, L.; You, S.-L. Chem. Soc. Rev. 2016, 45, 1570. (d) Huang, G.; Yin, B. Adv. Synth. Catal. 2018, 361, 405. (e) Sheng, F.-T.; Wang, J.-Y.; Tan, W.; Zhang, Y.-C.; Shi, F. Org. Chem. Front. 2020, 7, 3967. (f) Wang, Z. Org. Biomol. Chem. 2020, 18, 4354. (g) Zheng, C.; You, S.-L. ACS Cent. Sci. 2021, 7, 432. (h) Liu, Y.-Z.; Song, H.; Zheng, C.; You, S.-L. Nat. Synth. 2022, 1, 203. (i) Pang, M.; Chang, H.; Feng, Z.; Zhang, J. Chin. J. Org. Chem. 2023, 43, 1271 (in Chinese) (庞明杨, 常宏宏, 冯璋, 张娟, 有机化学, 2023, 43, 1271). (j) Cheng, Y.-Z.; Li, M.; Wang, R.-X.; Zhu, L.-H.; Shen, W.-J., Zou, X.-X.; Gu, Q.; You, S.-L. Progress in Chem. 2024, 36, 1785.
[3] (a) Trost B. M.; Ehmke V.; O'Keefe B. M.; Bringley, D. A. J. Am. Chem. Soc. 2014, 136,8213. For a recent example of related dearomatization, see: (b) Zeng, W.-L.; Xia, Q.; Li, C.-Q.; Wang, M.-Y.; Jin, W.-Y.; Ding, H.; Li, W.J. Am. Chem. Soc. 2024, 146, 30764.
[4] For selected examples on metal-catalyzed dearomatization reaction of 3-nitroindoles, see: (a) Awata A.; Arai, T. Angew. Chem. Int. Ed.2014, 53, 10462.(b) Zhao, J.-Q.; Zhou, M.-Q.; Wu, Z.-J.; Wang, Z.-H.; Yue, D.-F.; Xu, X.-Y.; Zhang, X.-M.; Yuan, W.-C. Org. Lett. 2015, 17, 2238.(c) Gerten A. L.; Stanley, L. M. Org. Chem. Front.2016, 3, 339.(d) Gee, Y. S.; Rivinoja, D. J.; Wales, S. M.; Gardiner, M. G.; Ryan, J. H.; Hyland, C. J. T. J. Org. Chem. 2017, 82, 13517. (e) Laugeois, M.; Ling, J.; Ferard, C.; Michelet, V.; Ratovelomanana-Vidal, V.; Vitale, M. R. Org. Lett. 2017, 19, 2266. (f) Rivinoja, D. J.; Gee, Y. S.; Gardiner, M. G.; Ryan, J. H.; Hyland, C. J. T. ACS Catal. 2017, 7, 1053. (g) Sun, M.; Zhu, Z.-Q.; Gu, L.; Wan, X.; Mei, G.-J.; Shi, F. J. Org. Chem. 2018, 83, 2341. (h) Zhang, J.-Q.; Tong, F.; Sun, B.-B.; Fan, W.-T.; Chen, J.-B.; Hu, D.; Wang, X.-W. J. Org. Chem. 2018, 83, 2882. (i) Suo, J.-J.; Liu, W.; Du, J.; Ding, C.-H.; Hou, X.-L. Chem. Asian J. 2018, 13, 959. (j) Suo, J.-J.; Du, J.; Jiang, Y.-J.; Chen, D.; Ding, C.-H.; Hou, X.-L. Chin. Chem. Lett. 2019, 30, 1512. (k) Ling, J.; Mara, D.; Roure, B.; Laugeois, M.; Vitale, M. R. J. Org. Chem. 2020, 85, 3838. (l) Xie, J.-H.; Zheng, C.; You, S.-L. Angew. Chem. Int. Ed. 2021, 60, 22184. (m) Wan, Q.; Xie, J.-H.; Zheng, C.; Yuan, Y.-F.; You, S.-L. Angew. Chem. Int. Ed. 2021, 60, 19730. (n) Pandit, S.; Pandey, V. K.; Adhikari, A. S.; Kumar, S.; Maurya, A. K.; Kant, R.; Majumdar, N. J. Org. Chem. 2023, 88, 97. (o) Dou, P.-H.; Fu, X.-H.; Chen, Y.; Ge, Z.-Z.; Zhou, M.-Q.; Wang, Z.-H.; You, Y.; Yang, L.; Zhang, Y.-P.; Zhao, J.-Q.; Yuan, W.-C. Org. Lett. 2024, 26, 3310. (p) Chen, Y.; Zhang, X.-H.; Wang, Z.-H.; Yang, L.; You, Y.; Zhao, J.-Q.; Zhou, M.-Q.; Lu, J.-H.; Yin, J.-Q.; Yuan, W.-C. Org. Lett. 2025, 27, 11776.
[5] For selected examples on organocatalyzed or metal-free catalyzed dearomatization reaction of 3-nitroindoles, see:(a) Andreini M.; De Paolis M.; Chataigner, I. Catal. Commun. 2015, 63, 15. (b) Li Y.; Tur F.; Nielsen R. P.; Jiang H.; Jensen F.; Jørgensen, K. A. Angew. Chem. Int. Ed.2016, 55, 1020.(c) Yue, D.-F.; Zhao, J.-Q.; Chen, X.-Z.; Zhou, Y.; Zhang, X.-M.; Xu, X.-Y.; Yuan, W.-C.Org. Lett. 2017, 19, 4508.(d) Liu, X.; Yang, D.; Wang, K.; Zhang, J.; Wang, R. Green Chem. 2017, 19, 82.(e) Li, K.; Goncalves, T. P.; Huang, K.-W.; Lu, Y. Angew. Chem. Int. Ed. 2019, 58, 5427. (f) Wang, H.; Zhang, J.; Tu, Y.; Zhang, J. Angew. Chem. Int. Ed. 2019, 58, 5422. (g) Mei, M.-S.; Wang, Y.-H.; Hu, Q.; Li, Q.-H.; Shi, D.-Y.; Gao, D.; Ge, G.; Lin, G.-Q.; Tian, P. Chem. Commun. 2020, 56, 10718. (h) Huang, H.; Li, Q.-Z.; Liu, Y.-Q.; Leng, H.-J.; Xiang, P.; Dai, Q.-S.; He, X.-H.; Huang, W.; Li, J.-L. Org. Chem. Front. 2020, 7, 3862. (i) Wang, H.; Hu, Q.; Wang, M.; Guo, C. iScience 2020, 23, 100840. (j) Dai, X.; Zhang, F.; Dai, L.; Lu, Y. CCS Chem. 2023, 5, 2023.
[6] For selected reviews on electron-deficient indoles, see: (a) Cerveri A.; Bandini, M. Chin. J. Chem. 2020, 38, 287. (b) Rkein B.; Bigot A.; Birbaum L.; Manneveau M.; De Paolis M.; Legros J.; Chataigner I. Chem. Commun.2021, 57, 27.(c) Wang, N.; Ren, J.; Li, K. Eur. J. Org. Chem. 2022, e202200039.(d) Wang, H.; Xie, H.; Guo, S.-M.; Duan, R.; Lin, Y.-W.; Zhang, J. Org. Chem. Front. 2026, 13, 1458.
[7] Cheng, Q.; Zhang, F.; Cai, Y.; Guo, Y.-L.; You, S.-L.Angew. Chem. Int. Ed. 2018, 57, 2134.
[8] Zhang Q.-X.; Gu Q.; You S.-L. Org. Lett.2022, 24, 8031.
[9] Zhang Q.-X.; Li Y.; Wang J.; Yang C.; Liu C.-J.; Li X.; Cheng, J.-P. Angew. Chem. Int. Ed.2020, 59, 4550.
[10] Porcu, S.; Luridiana, A.; Martis, A.; Frongia, A.; Sarais, G.; Aitken, D. J.; Boddaert, T.; Guillot, R.; Secci, F.Chem. Commun. 2018, 54, 13547.
