... Column chromatography was carried out on silica gel (80—100 mesh, Kanto Chemical Co., Inc). ... Page 6. 1848 Vol. ... Chem. Int. Ed. Engl., 21, 734 (1982); idem, “The Chemistry of Peroxides,” Chapter 15, ed. by S. Patai, John Wiley and Sons, New York, 1983, p. 463. ...