7335-42-4Relevant academic research and scientific papers
Carbon supported Pd nanocrystals as high efficient catalyst for regioselective hydrogenation of p-phenylphenol to p-cyclohexylphenol
Liu, Chengyun,Lu, Lianhai,Rong, Zeming,Liang, Changhai,Wang, Yue,Qu, Qingping
, p. 1321 - 1329 (2013/01/15)
A series of Pd based nanocrystals were used to catalyze regioselective hydrogenation of p-phenylphenol (p-PP) to p-cyclohexylphenol (p-CP). The polar solvents such as THF, methanol and ethanol offered much higher selectivity to p-CP than nonpolar solvent. Concerning the effect of supports, the active carbon supported Pd nanocrystals show the best performance probably due to its hydrophobicity and high surface area. The best result with high selectivity (89.1 %) was obtained by using Pd/active carbon as catalyst when p-PP was 100 % converted. Springer Science+Business Media, LLC 2012.
Hydrogenation of 4-Substituted Biphenyls
Minabe, Masahiro,Watanabe, Kousuke,Ayabe, Yooichi,Yoshida, Masaaki,Toda, Takashi
, p. 1745 - 1748 (2007/10/02)
Hydrogenations of 4-hydroxy-(1a), 4-methoxy-, and 4-methylbiphenyls were carried out in the presence of Raney nickel (R-Ni), palladium-on-carbon (Pd-C), or platinum as catalysts under relatively mild conditions.The reaction rates depend primarily on the catalysts and less on the substrates.Hydrogenation with Pd-C or Pt took place predominantly in the phenyl ring, independent of the substituent.On the other hand, hydrogenation with R-Ni caused reduction mainly in the substituted aromatic ring.Hydrogenation of the phenol, 1a, using R-Ni afforded predominantly trans-4-phenylcyclohexanol in preference to the cis isomer, differing from the other reactions examined.
