Canadian Journal of Chemistry, , vol. 30, p. 924,931 Org. Synth. Isotopes, , p. 1381 Natuurw.Tijdsch.Chem.Abstr., , vol. 22, p. 57 Natuurw.Tijdsch.Chem.Abstr., , p. 2335 Journal of the Chemical Society, , p. 598,601 Journal of the American Chemical Society, , vol. 60, p. 1982 Proceedings - Indian Academy of Sciences, Section A, , vol. 8, p. 320 Chem. Zentralbl., , vol. 111, # I p. 1484 Proceedings of the Imperial Academy (Tokyo), , vol. 14, p. 250 Chem. Zentralbl., , vol. 110, # I p. 914