Gertschuk Zhurnal Obshchei Khimii, 1950 , vol. 20, p. 917,920; engl. Ausg. S. 955, 958 Full Text Show Details Haskelberg Journal of Organic Chemistry, 1947 , vol. 12, p. 435 Journal of Organic Chemistry, 1948 , vol. 13, p. 937