Titanium phosphonate-supported palladium catalyst for the hydrogenation of acetophenone with one-phase catalysis and two-phase separation

Preparation of 1-phenylethanol by selective hydrogenation of acetophenone over alumina-supported Co catalysts

“…Acetophenone hydrogenation on alumina-supported Co catalyst 1-phenylethanol is the intermediate for ethylbenzene [5]. When the conversion is close to 100% at 353 K, a small amount of 1-cyclohexylethanol (0.2%) was produced.…”

“…The products are strongly dependent on catalyst composition. The products are 1-phenylethanol and ethylbenzene over Pd-based catalyst [4,5]. In contrast, the products are 1-phenylethanol, ethylbenzene, methylcyclohexylketone, cyclohexylethanol and ethylcyclohexane over Pt-based catalyst [2,6].…”

“…So far, the hydrogenation of acetophenone has been successfully studied on Pd [4,5], Pt [2,6], Ru [7], Ni [8,9], and Cu [10] catalytic systems. It is well known that the hydrogenation of acetophenone is a complex multi-step reaction due to competitive hydrogenation between phenyl and carbonyl groups in one molecule ( Fig.…”

Novel organosoluble filiform zirconium phosphonates with a layered mesoporous backbone

“…This zirconium phosphonate was immiscible in organic solvents, 6d although the corresponding titanium phosphonate was (slightly) soluble only in ethanol (30-50 mg mL À1 ). 15 Zirconium phosphonates with more phenyl groups and without amino or hydroxyl groups, Zr(OH) 1.8 [O 3 P(CH 2 ) n PPh 2 ] 1.1 (n ¼ 2-6) and Zr(OH) 2.2 [O 3 P(CH 2 ) n N(CH 2 CH 2 PPh 2 ) 2 ] 0.9 (n ¼ 2-6), were also synthesized by the reaction of functionalized phosphoric acids with ZrOCl 2 $8H 2 O, but they were completely insoluble in organic solvents. Therefore, we can conclude that the number of phenyl, amino and hydroxyl groups in the pendant organic moieties and their cooperative effect plays an important role in the solubility of zirconium phosphonates 1-4 in organic solvents.…”

Kinetics of One-Pot Regioselective Cohydrogenation of Styrene Oxide and Aryl Alkenes: A Step toward Sustainable Development of a Novel Integrated Process for 2-Phenylethanol Production

“…They include chemicals such as methoxy methylbenzene, phenylacetaldehyde, and 1PEA (routes a , c , and d in Figure ). Moreover, compounds such as alpha-methylstyrene (AMS) − (routes e – g in Figure ), ACP − (routes h and i in Figure ), and STY , (routes j – n in Figure ) are also prone to hydrogenation and can convert into numerous products. A detailed report of information available in the literature is elucidated in Section S.1 of the Supporting Information.…”