Exhaustive hydrodechlorination of chlorinated aromatic environmental pollutants to alicyclic compounds

Pd/C‐Catalyzed Transfer Reduction of Aryl Chlorides with Sodium Formate in Water

“…It is remarkable that under these conditions the transfer reduction of chlorophenols 1cϪe and 4-chlororesorcinol (1h) leads chemoselectively to the formation of cyclohexanol. By contrast with the results previously reported [36] in the hydrogenation experiments of chloroarenes in the presence of the sol-gel entrapped Pd/ [Rh(cod)Cl] 2 or supported palladium [36] catalysts, the formation of cyclohexane and cyclohexanone, which can be regarded as the keto tautomer of the cyclohexenol, is not observed with the present methodology. Surprisingly, 4-chloroacetophenone (1g) can be selectively reduced to 1-phenylethanol (4a).…”

Pd-loaded magnetic mesoporous nanocomposites: A magnetically recoverable catalyst with effective enrichment and high activity for DDT and DDE removal under mild conditions

“…Pd/FSS has a similar adsorption process and good adsorption ability, but slightly slower and lower than that of FSS. In general, the adsorption process 14 takes place by two consecutive processes, fast diffusion and slow reaction. TEM measurements display that the Pd loading not only blocks some of surface pores of mesoporous silica shell, but also partly destroys the ordered mesoporous silica shell (as pointed by arrows in Fig.…”

“…First, their high activities are usually accompanied with the employment of harsh reaction conditions, such as high pressure [14], continuous bubbling of hydrogen [15], reductants or alkaline solution [16] or illumination [17]; second, these materials are difficult to be separated from dispersion solution due to their small particle size. Therefore, for the convenient remediation of organochlorine pollutants in environment, design and synthesis of new materials with good removal activity, simple separation character and mild treatment system are a very challenging issue but have great realistic meaning now.…”

Optical and electrochemical sol-gel sensors for inorganic species

“…Such materials have been used for catalysts in green chemistry [55] , separation stationary phases [56] , sensors [4,23,24,45] , electrochemistry [31,32,57,58] , and organic synthesis [59] . Several welldeveloped techniques exist for the detection of metal ions including atomic absorption or emission (AAS, or ICP-OES) and mass spectrometry (ICP-MS).…”