1. Yang, Z. Org. Lett. 2002, 4, 2607. (b) Brown, R. C. D. Angew. Chem., Int. Ed. 2005, 44, 850. (c) Lenden, P.
2. Willis, M. C. Angew. Chem., Int. Ed. 2011, 50, 10657. (d) Pankova, A. S. Chem. Heterocycl. Compd. 2020, 56, 829. [Khim. Geterotsikl. Soedin. 2020, 56, 829.]
3. (a) Liao, Y.; Reitman, M.; Zhang, Y.; Fathi, R.; Yang, Z. Org. Lett. 2002, 4, 2607.
4. (b) Brown, R. C. D. Angew. Chem., Int. Ed. 2005, 44, 850.
5. (c) Lenden, P.; Entwistle, D. A.; Willis, M. C. Angew. Chem., Int. Ed. 2011, 50, 10657.