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4. The catalyst was packed in a range of column types, see: (a) Tsubogo, T.; Yamashita, Y.; Kobayashi, S. Top. Catal. 2014, 57, 935–939; (b) Tsubogo, T.; Yamashita, Y.; Kobayashi, S. Chem. Eur. J. 2012, 18, 13624–13628; (c) Kaizuka, K.; Lee, K.-Y.; Miyamura, H.; Kobayashi, S. J. Flow Chem. 2012, 2, 1–4; (d) Oyamada, H.; Naito, T.; Kobayashi, S. Beilstein J. Org. Chem. 2011, 7, 735–739; (e) Kobayashi, S.; Miyamura, H.; Akiyama, R.; Ishida, T. J. Am. Chem. Soc. 2005, 127, 9251–9254. See also: O'Brien, M.; Taylor, N.; Polyzos, A.; Baxendale, I. R.; Ley, S. V. Chem. Sci.2011, 2, 1250–1257.
5. The catalyst was immobilized on the surface of a capillary type column, see: (a) Wang, N.; Matsumoto, T.; Ueno, M.; Miyamura, H.; Kobayashi, S. Angew. Chem., Int. Ed.2009, 48, 4744–4746; (b) Ueno, M.; Suzuki, T.; Naito, T.; Oyamada, H.; Kobayashi, S. Chem. Commun. 2008, 1647–1649; (c) Kobayashi, J.; Mori, Y.; Kobayashi, S. Adv. Synth. Catal. 2005, 347, 1889–1892.