Zhurnal Obshchei Khimii, vol. 7, p. 634 Chem.Abstr., , p. 5779 Journal of Organic Chemistry, , vol. 5, p. 253,259 Zhurnal Obshchei Khimii, , vol. 7, p. 632,635 Chem. Zentralbl., , vol. 109, # I p. 578