Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Juha Päivärinta"'
Autor:
Matti Hotokka, Antti Taskinen, Esa Toukoniitty, Ville Nieminen, Juha Päivärinta, Dmitry Yu. Murzin
Publikováno v:
Journal of Catalysis. 224:326-339
The enantioselective hydrogenation of vicinal diketones over cinchonidine-modified Pt resulted in enantiomeric excess of structurally similar (R)-enantiomers. Furthermore, the kinetic resolution was caused due to faster reaction of (S)-hydroxyketone
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::145ef3f84c5439dc193ac2b2673e3988
https://doi.org/10.1016/j.jcat.2004.03.022
https://doi.org/10.1016/j.jcat.2004.03.022
Autor:
Päivi Mäki-Arvela, D. Yu. Murzin, Juha Päivärinta, Jyrki Kuusisto, Ville Nieminen, Esa Toukoniitty, Matti Hotokka, Tapio Salmi
Publikováno v:
Journal of Molecular Catalysis A: Chemical. 192:135-151
Solvent effects in enantioselective hydrogenation of 1-phenyl-1,2-propanedione ( A ) were investigated in a batch reactor over a cinchonidine modified Pt/Al 2 O 3 catalyst. The effect of different solvents, binary solvent mixtures and solvent dielect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6a91d38cccbaa971764977e8792db7c9
https://doi.org/10.1016/s1381-1169(02)00415-6
https://doi.org/10.1016/s1381-1169(02)00415-6
Publikováno v:
Crystal Growth & Design. 2:121-126
Ab initio quantum chemical studies at the Hartree−Fock (HF) level with the 6-31G** basis set and molecular dynamics calculations were performed on two pharmaceutical compounds, namely, the budesonide and beclomethasone dipropionate molecules. The p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::59bbe76b57fc70fe58594527ebe57bec
https://doi.org/10.1021/cg010032d
https://doi.org/10.1021/cg010032d
Publikováno v:
The Journal of Physical Chemistry A. 105:10111-10122
We have modeled aluminum hydroxide solvation using static methods HF, DFT, and MP2 and different solvation models, as well as, Car−Parrinello molecular dynamics (CPMD). Two primary conformations were considered: Al(OH)3•H2O and Al(OH)4-. The stat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::829b88c68465ccdfbf8a250c5a30a415
https://doi.org/10.1021/jp012171b
https://doi.org/10.1021/jp012171b
Publikováno v:
The Journal of Physical Chemistry B. 105:7944-7949
The consequence of mixing an alkanoic acid with an alkylamine is a proton transfer between the acid and the amine leading to a complexation, which is dependent on the mixing ratio between the two components. If water is added, the formed ammonium alk
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b70e4182d81d5e34d0ddc0bf3a28ae56
https://doi.org/10.1021/jp010727p
https://doi.org/10.1021/jp010727p
Publikováno v:
Chemical Physics. 263:127-138
In this work the charges, geometries, changes in geometries due to complexation, stabilization energies and vibrational frequencies have been calculated for three different propanoic acid (A)–propylamine (B) complexes. The complexes are A3B1, A1B3
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3df6f0980fa450a674a3e6757a5b30bb
https://doi.org/10.1016/s0301-0104(00)00347-5
https://doi.org/10.1016/s0301-0104(00)00347-5
Publikováno v:
Chemical Physics Letters. 327:420-424
Calculated geometries, charges and harmonic frequencies have been obtained for a complex consisting of propanoic acid and propylamine in a molecular ratio of 3:1 using ab initio quantum-chemical methods. The calculated harmonic frequencies are compar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9114d232cfeb5fbc0287cac0d832e197
https://doi.org/10.1016/s0009-2614(00)00860-5
https://doi.org/10.1016/s0009-2614(00)00860-5
Autor:
D. Yu. Murzin, Ville Nieminen, Ensio Laine, Matti Hotokka, Jerzy Datka, Juha Päivärinta, Tapio Salmi, Narendra Kumar
The role of copper was studied in the skeletal isomerization of 1-butene over copper-modified mesoporous MCM-41 molecular sieve and Beta zeolite. The Cu–H-MCM-41 and Cu–H-Beta catalysts were synthesized in our laboratory and characterized by XRD,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fb816c2cbe6e3803b32f3ec5de53bfea
https://ruj.uj.edu.pl/xmlui/handle/item/263177
https://ruj.uj.edu.pl/xmlui/handle/item/263177
Autor:
Päivi Mäki-Arvela, Juha Päivärinta, Tapio Salmi, Matti Hotokka, Esa Toukoniitty, Dmitry Yu. Murzin, Ville Nieminen
Publikováno v:
Catalysis of Organic Reactions ISBN: 9780824741327
Catalysis of Organic Reactions
Catalysis of Organic Reactions
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5b5dc8673e18b75cab3cc660838bdd98
https://doi.org/10.1201/9780203911013.ch25
https://doi.org/10.1201/9780203911013.ch25
Publikováno v:
Journal of colloid and interface science. 241(1)
To facilitate the deposition of gamma-ureidopropyltrimethoxysilane monomer onto E-glass fibers, anhydrous acetone and THF were used as carrier solvents. Untreated industrial E-glass fibers and cold water plasma treated E-glass fibers were used. Cold
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::52decdcd9d9f1b701ffa0d3251807675
https://pubmed.ncbi.nlm.nih.gov/11502105
https://pubmed.ncbi.nlm.nih.gov/11502105