Prof. Ismael Warad, staff member at the Chemistry Department of An-Najah National University has been recently patented two discoveries by JUSTIA Patent in the U.S.

The first patent titled: "Method of synthesizing (E)-1,2-di(pyridin-2-yl) ethene-1,2-diol", included inventors Dr. Nabil Al-Zeqri from Yemen, Prof. Warad, Dr. Firas Awwadi from Jordan, Dr. Ali Alsalme from Saudi Arabia, Dr. Anas Alali from Palestine, Prof. Abdelkader Zarrouk from Morocco. 

The method of synthesizing (E)-1,2-di(pyridine-2-yl)ethene-1,2-diol involves dimerization of 2-pyridinecarboxaldehyde (also referred to herein as “picolinaldehyde”). The synthesis of the desired ethene-1,2-diol is achieved using a Cu(II) catalyst to dimerize picolinaldehyde under mild conditions. Preferably, the Cu(II) catalyst is a Cu(II)/neocuproine (2,9-dimethyl-1,10-phenanthroline) complex, or other Cu(II)/phen complex. The reaction in this embodiment may occur at room atmosphere and in ambient light conditions using a water/ROH solvent.

The second patent titled: "Method of making palladium nanoparticles", included inventors Dr. Al-Zaqri, Prof.WaradDr. Alsalme and Dr. Mujeeb Sultan.

The method of making palladium nanoparticles is a microwave thermolysis-based method of making palladium nanoparticles from a complex of palladium(II) acetate Pd(O2CCH3)2 (or Pd(OAc)2) and a ligand. The complex of palladium(II) acetate and the ligand is melted in oleic acid and dichloromethane to form a solution. The ligand is 1-(pyridin-2-yldiazenyl)naphthalen-2-ol (C15H11N3O), which has the structure: The solution is stirred for two hours under an inert argon atmosphere, and then irradiated with microwave radiation to produce palladium nanoparticles.

It is worth mentioning that Prof. Warad also claimed another patent in 2015 titled: "Heterocyclic Schiff’s Bases as Novel and New Antiglycation Agents".


For more information about the patents, please visit:

  • The first patent:

  • The second patent:

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