Denmark, Scott E.; Butler, Christopher R.
Journal of the American Chemical Society, 2008 , vol. 130, # 11 p. 3690 - 3704

Singh, Manorama; Singh, Krishna Nand; Misra, Ram Achal
Indian Journal of Chemistry, Section B: Organic Chemistry Including Medicinal Chemistry, 1994 , vol. 33, # 2 p. 173 - 176

Buu-Hoi,N.P.; Saint-Ruf,G.
Bulletin de la Societe Chimique de France, 1967 , p. 955 - 960