METHOD FOR PREPARING SYNTHESIS INTERMEDIATES THAT CAN BE USED IN THE PREPARATION OF TAIWANIAQUINOIDS

摘要

The invention relates to a method for obtaining taiwaniaquinoids having general formula (13), which can be used as synthesis intermediates in the production of other taiwaniaquinoids and derivatives. The method comprises the condensation between α-cyclocitral or β-cyclocitral and a halogenated derivative having formula (11) in order to obtain a compound having formula (12), which is subsequently cyclized and dehydrated by means of acid treatment to produce the tricyclic structure [6-5-6] of the taiwaniaquinoids.