A GENERAL SYNTHETIC METHOD FOR ORSELLINIC ACID MOIETY OF MACROLIDES BY THE PALLADIUM-CATALYZED CARBONYLATION OF ARYL IODIDE AND ITS APPLICATION TO ZEARALENONE SYNTHESIS
(3) in 70% yield, which is the precursor of Zearalenone (1). 1-Iodo-2-phenylthiomethyl-4,6-dimethoxybenzene (9) was prepared from 3,5-dihydroxybenzoic acid (5a). This method of carbonylation offers a general and convenient syntheticmethod for an orsellinic acid moiety of orsellinic acid type macrolides.