engleski

Catalytic Aromatization Of Hantzsch 1, 4 - Dihydropyridines With Tert-Butylhydroperoxide And iron (III) Phthalocyanine

In this study we wish to report that t-butyl hydroperoxide is very efficient oxidant in the presence of iron(III)(phthalocyanine)Cl as catalyst for aromatization of 1, 4-DHPs (I), Scheme 1. These reactions are very clean and completed within ca. 30 minutes depending on substituents attached at phenyl ring. The obtained products II are isolated in high purities and with excellent yields (>95%).

1; 4-dihydropyridines; aromatization

nije evidentirano