Direct hydroxylation of benzene catalyzed by vanadium-con-taining heteropoly compounds with Keggin or Dawson structure has beeninvestigated.The effects of sever
The title compound was synthesized by introduction of the lowerside chain,which had 16,16-dimethyl groups with Wittig-Horner reactionas a key step,then removal
The formation and breaking of intramolecular hydrogen bondsof bilirubin in CDCl<sub>3</sub>-DMSO-d<sub>6</sub> binary solvent have been investigated by meansof