Suzuki, Noriyuki; Kondakov, Denis Y.; Takahashi, Tamotsu
Journal of the American Chemical Society, 1993 , vol. 115, # 18 p. 8485 - 8486

Hurd; McNamee
Journal of the American Chemical Society, 1932 , vol. 54, p. 1648
Journal of the American Chemical Society, 1937 , vol. 59, p. 1648

Jeon, Jae-Ho; Kim, Mi Ran; Jun, Jong-Gab Synthesis, 2011 ,  # 3  art. no. F18510SS, p. 370 - 376