Synthesis and Biological Activity of O,O′-Dialkyl 5-Aryl-1-Hydroxy-3-Methyl-2E,4E-Pentadienylphosphonates

Abstract

A series of unsaturated f -hydroxy phosphonates were synthesized by the addition reactions of dialkyl phosphites with 5-aryl-3-methyl-2E, 4E-pentadienaldehydes. The structures of all new compounds have been confirmed by 1 H NMR, 31 P NMR, and IR spectroscopy and by elemental analysis or MS. The bioassays showed that some of these compounds exhibit certain inhibitory activity on the elongation of wheat coleoptile.

Keywords:

• Plant Growth Regulator
• Synthesis
• Unsaturated Hydroxy Phosphonates