Synthesis and Cytokinin Activity of Two Fluoro Derivatives of <i>N</i>⁶-Isopentenyladenine

Abstract

Two derivatives of N6-isopentenyladenine, 3 and 4, bearing either a vinylic fluorine atom or a trifluoromethyl group, were easily synthesized from known fluorinated precursors. Both derivatives 3 and 4 were found to be more active, as cytokinins, than the parent compounds zeatin (1) and N6-isopentenyladenine (2). Keywords: Cytokinins; fluoro compounds; biological activity