Naddaka, V. I.; Avanesyan, K. V.; Nesterova, M. A.; Minkin, V. I. Journal of Organic Chemistry USSR (English Translation), 1987 , vol. 23, # 4 p. 802 - 803 Zhurnal Organicheskoi Khimii, 1987 , vol. 23, # 4 p. 887 - 888