КОМПЛЕКСИ п-МЕТОКСИФЕНІЛТЕЛУРТРИХЛОРИДУ З N- АЛІЛЬНИМИ ПОХІДНИМИ 2- ОКСО(МЕТИЛТІО)ТІЄНО[2,3- d]ПІРИМІДИН-4-ОНУ

Abstract

Aryltellurtrichlorides, as electrophilic reagents, interact with alkenyl derivatives, containing an additional nucleophilic center, regioselectively form heterocycles with an exocyclic aryltellurium fragment. It has been established that the interaction of p-methoxyphenyltetrachloride with N-alkenyl derivatives of 2-oxo(methylthio)thieno[2,3-d]pyrimidine-4-one does not lead to annulation of the oxazoline ring, whereas the molecular complexes of substrate:electrophile are formed in the ratio of 1:2. Aryltellurtrichloride forms a complex, probably with exocyclic oxygen and endocyclic nitrogen, which makes it impossible the addition to allyl fragment.