... (IO) B. Holmberg and B. Sorbo, Xatum, 183, 832 (1959). (11) NA Rosenthal and L. Citarel, 141st National hleeting of the American Chemical Society, Washington, DC, 1962; Abstracts of Papers, p. 29N. ... (24) R. B. Martin, 8. Lone)., EL Elson. and .J. T. Edsall, J . Am. Chem. ...