Synthesis of Cinnamic Acid Derivatives Using Ethanol as Solvent or Microwave Assisted Method.

A comparison study about some parameters which influence the condensation of veratraldehyde with malonic acid in the presence of piperidine using ethanol as solvent and microwave irradiation was done, the obtainment of several substituted cinnamic acids are reported.     

Use of Pyridine as Cocatalyst for the Synthesis of N-Phenylanthranilic Acids

It is reported the use of pyridine as cocatalyst for the synthesis of N-phenylantranilic acids by the Ullmann-Goldberg condensation in water or amyl alcohol as solvents, with good yield.     

1H and 13 C spectral assignments of 7beta-(cinnamoyl-substituted)amino-3-acetoxymethyl-cephalosporins

The (1)H and (13)C spectroscopic data for 7beta-(cinnamoyl-substituted)amino-3-acetoxymethyl-cephalosporins were fully assigned by a combination of one- and two-dimensional experiments. Substitution on the aromatic ring and on the double-bond alpha-position of the cinnamoyl moiety has little influence on the spectroscopic properties of the 7beta-aminocephalosporanic acid parent moiety.