The Chemistry of Fumagillin. IV. The Presence of an Epoxide Grouping and Other Observations on the Nature of the Oxygen Functions¹

Chemical Evidence for at Least Two Different Precursors to Cyclohexene Formed by Electron Irradiation of Cyclohexane

“…Table I 1.8 " Irradiations were carried out on deoxygenated samples unless noted. 6 Irradiated both in the presence and absence of air, with the same results within experimental error.…”

Characterization of Four Amino Acids Constituting Cyl-2, a Metabolite fromCylindrocladium scoparium

“…Melting points were measured on a microscope hot plate and reported uncorrected. 6.68, 7.04 (2H each, d, J =8 Hz, -C 6 H4-0CHs in O-Me-Tyr). Cyl-2 was positive to 2,4-dinitrophenylhydrazine.…”

An Unusual Base-catalyzed Cyclization

“…This compound previously had been prepared by Neber by esterification of o-aminophenylacetic acid. 6 The conversion into VIII was then carried out with benzoyl chloride in pyridine, in 72-78% yields based on nitroester, according to Neber's directions. 6 Ethyl o-Benzamidophenylacetate (IX).-Ethyl o-nitro-phenvlacetate14 was hydrogenated with platinum in absolute (9) J. N. Chatterjea, J. Indian Chem.…”