Intercalation of Aliphatic Carboxylates in Hydrotalcite Interlayers: Selective Photochemical Hydrogen Abstraction by Benzophenonecarboxylate

The photochemical hydrogen abstraction of p-benzoylbenzoate ions (BPC) from aliphatic carboxylate ions in LDH (hydrotalcite) interlayers yielded a series of their I: I adducts. The product distributions were rather selective as well as distinctive from those of sodium salts and methyl esters in homogeneous solutions without LDH. These results have been discussed on the basis of their mutual disposition on the layer surfaces of the LDH.