Gorelik, M. V.; Arinich, L. V.; Kotlyarevskii, O. I.; Fes'kova, E. A. Journal of Organic Chemistry USSR (English Translation), 1984 , vol. 20, p. 1766 - 1771 Zhurnal Organicheskoi Khimii, 1984 , vol. 20, # 9 p. 1934 - 1939