Ratschinskii; Sal'manowitsch
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Chem.Abstr., 1955 , p. 888

Nasarow et al.
Zhurnal Obshchei Khimii, 1955 , vol. 25, p. 320,324; engl. Ausg. S. 303, 306

Dzhemilev, U. B.; Ibragimov, A. G.; Tolstikov, G. A.; Vostrikova, O. S.; Zelenova, L. M.
Journal of Organic Chemistry USSR (English Translation), 1981 , vol. 17, # 11 p. 2066 - 2071
Zhurnal Organicheskoi Khimii, 1981 , vol. 17, # 11 p. 2313 - 2319