HAP-Pd(0): A Highly Efficient Recyclable Heterogeneous Catalyst for the Selective Reduction of Carbon–Carbon Double Bond in α,β-Unsaturated Ketones

Metal Phosphate-Supported Pt Catalysts for CO Oxidation

“…In the literature, some metal carbonates, phosphates, and sulfates have been used as supports to load metals [2]. From the examples on the catalytic applications of metal phosphate-based catalysts cited in the Introduction section [4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,…”

Unique Chemoselective Hydrogenation using a Palladium Catalyst Immobilized on Ceramic

“…Clay, which is a raw material of ceramics, is one of most typical materials as the supports for the heterogeneous palladium catalysts. A variety of palladium catalysts supported on clay, such as bentonite,1, 2 vermiculite,3 pillared clay,4 montmorillonite,5–16 hydrotalcite,17–19 and hydroxyapatite,20–22 has been prepared and used for the hydrogenation; e.g., semihydrogenation of alkynes to the corresponding alkenes 4. 6–13, 17 Although the use of ceramics combined with palladium species has also been studied, such functional ingredients are mainly utilized as hydrogen‐permeable membrane materials23, 24 for the dehydrogenation of saturated compounds,24 thus, the reaction efficiency for the generation of benzene24a and styrene24b,c from cyclohexane and ethylbenzene, respectively, by the ceramic‐supported or ‐coated palladium‐catalyzed dehydrogenation could be enhanced, owing to the efficient removal of the generated hydrogen gas from the reaction system.…”

Palladium-nanoparticles on end-functionalized poly(lactic acid)-based stereocomplexes for the chemoselective cinnamaldehyde hydrogenation: Effect of the end-group

“…S1), while the successful incorporation of the functional groups (R) in the PLA backbone was proved by acquiring 13 C{ 1 H} NMR spectra in CDCl 3 showing for R = Bn, Py and BiPy a singlet at ca. 65.4 ppm which corresponds to the methylene unit of the functional groups attached via ester functionality to PLA, whereas, a broad 13 C{ 1 H} NMR singlet centered at 172.97 ppm for l/d-PLA H proved the presence of an carboxylic acid terminal group in the latter polymer [26].…”

“…The selective hydrogenation of the C@C double bond in a,b-unsaturated carbonyl compounds is an important organic transformation leading to the saturated counterparts which are widely applied in synthetic and pharmaceutical chemistry [1][2][3]. Metallic palladium embedded in a carbon support is generally used to catalyze the latter substrate conversion, which is not always chemoselective [4][5][6][7].…”