Ganin, E. V.; Makarov, V. F.; Rozynov, B. V. Journal of Organic Chemistry USSR (English Translation), 1985 , vol. 21, # 9 p. 1772 - 1777 Zhurnal Organicheskoi Khimii, 1985 , vol. 21, # 9 p. 1935 - 1941