Komissarov, V. N.; Ukhin, L. Yu.; Orlova, Zh. I.; Tokarskaya, O. A. Journal of Organic Chemistry USSR (English Translation), 1987 , vol. 23, # 6 p. 1198 - 1199 Zhurnal Organicheskoi Khimii, 1987 , vol. 23, # 6 p. 1325 - 1326