1. For the survey of gas information (a) about C5F8: ZEON, e.g., http://www.zeon.co.jp/business_e/enterprise/imagelec/zeorora.html; (b) about C4F6 : e.g., ShowaDenko, https://www.sdk.co.jp/english/news/2003/aanw_03_0176.html;https://www.sdk.co.jp/english/news/2009/aanw_09_1004.html Toyoko Kagaku, https://www.toyokokagaku.co.jp/product/gas/physical/c4f6.html.
2. Cook, E. W. Nature. 1973. 242. 337.
3. (a) Nakamura, T.; Kawanishi, Y. Tetrahedron Letters, 2017, 58, 1176; (b) Nakamura, T. et al, AIST press-release: https://www.aist.go.jp/aist_e/list/latest_research/2017/20170214/en20170214.html; (c) Cham-bers, R. D.; Roche, A. J.; Batsanov, A. S.; Howard, J. A. K. J. Chem. Soc., Chem. Commun. 1994, 96, 2055.
4. Nakamura, T. et al. JP patent. 5665001.
5. Azoles as Reactive Nucleophiles with Cyclic Perfluoroalkenes