Tagawa, Shinji; Choshi, Tominari; Okamoto, Asuka; Nishiyama, Takashi; Watanabe, Shiroh; Hatae, Noriyuki; Ishikura, Minoru; Hibino, Satoshi European Journal of Organic Chemistry, 2013, # 9 p. 1805 - 1810 doi: 10.1002/ejoc.201201652