478-60-4Relevant articles and documents
ISOLATION AND STRUCTURE ELUCIDATION OF POLIVIONE, A POLYKETIDE CO-METABOLITE OF CITROMYCETIN IN PENICILLIUM FREQUENTANS
Demetriadou, Agathi K.,Laue, Ernest D.,Leeper, Finian J.,Staunton, James
, p. 763 - 768 (1988)
The isolation and characterization of polivione, a polyketide metabolite and probably a precursor of citromycetin (1), from Penicillium frequentans is reported.The structure elucidation of polivione is based on a detailed study of its high-field (1)H and (13)C n.m.r. spectra.Extensive use was made of two-dimensional homonuclear and heteronuclear correlation experiments in the assignment of the n.m.r. spectra.Some chemical transformations were also explored, both to confirm its structure and to investigate its relationship to citromycetin.
Studies on the Syntheses of Heterocyclic Compounds containing Benzopyrone. Part 6. Biomimetic Total Synthesis of Citromycetin
Yamauchi, Masashige,Katayama, Sadamu,Watanabe, Toshio
, p. 395 - 398 (2007/10/02)
Biomimetic total synthesis of citromycetin (1a) is described.Regioselective cyclization of the enetrione (5), chosen as a common intermediate for the syntheses of citromycetin (1a) and fulvic acid (2a), with conc.HCl-AcOH (1:30) gave the chloromethylpyron
Biogenetic-type Total Synthesis of Citromycetin
Yamauchi, Masashige,Katayama, Sadamu,Watanabe, Toshio
, p. 1483 - 1484 (2007/10/02)
Biogenetic-type total synthesis of citromycetin (1a) was achieved by a route involving oxidation of a propenyl group and demethylation of a methoxy group in the pyranobenzopyranone (1c), synthesized by a regioselective cyclization of the enedione (2c).