M. Yamauchi, S. Katayama, Toshio Watanabe
1987
Citations
0
Influential Citations
4
Citations
Journal
Journal of The Chemical Society-perkin Transactions 1
Abstract
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. HCI–AcOH (1:30) gave the chioromethylpyrone (7b). Oxidation, followed by demethylation of the substituents of the pyranobenzopyranone obtained by debenzylation and cyclization of the reactive intermediate (5), yielded citromycetin (1a).