Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Maria José S. M. Moreno"'
Autor:
Rita Skoda-Földes, Mariette M. Pereira, Janusz M. Dąbrowski, Mercédesz Kiss, Ana R. Almeida, László Kollár, Maria José S. M. Moreno, Rui M. B. Carrilho
Publikováno v:
European Journal of Organic Chemistry. 2015:1840-1847
An efficient one-step synthetic strategy was used to prepare a set of dicarboxamides through palladium-catalysed amino carbonylation of iodoalkenyl and iodoaryl compounds, with use of various alkyl- and aryldiamines as N-nucleophiles. The isolated yi
Autor:
Rui M. D. Nunes, Glenda A. Carvalho, Mariette M. Pereira, Maria José S. M. Moreno, Ana P. Piedade, Tânia Fernandes, Eduardo N. dos Santos
Publikováno v:
Journal of Molecular Catalysis A: Chemical. 307:115-120
Macroreticular anion exchange resins, Amberlite IRA-900 and Amberlite IRA-96, were used to bind monosulfonated triphenylphosphine ligand via noncovalent electrostatic interactions. The resin-phosphine system was found to be very efficient at promotin
Autor:
Maria José S. M. Moreno, José A. Paixão, Ana Matos Beja, Manuela Ramos Silva, Andreia F. Peixoto, J. Carles Bayón, Artur M. S. Silva, Claudia M. Foca, Mariette M. Pereira
Publikováno v:
Journal of Molecular Catalysis A: Chemical. 275:121-129
The hydroformylation of Δ 4 - and Δ 5 -steroids, namely cholest-4-ene ( 1 ), 3β-acetoxycholest-4-ene ( 2 ), 3β-acetoxycholest-5-ene ( 3 ), and 3β-acetoxypregn-5-en-20-one ( 4 ), was studied using rhodium catalysts modified with P-donor ligands c
Autor:
Maria José S. M. Moreno, Mercédesz Kiss, Ana R. Almeida, Mariette M. Pereira, Rui M. B. Carrilho, Janusz Dabrowski, László Kollár, Rita Skoda‐Foeldes
Publikováno v:
ChemInform. 46
A versatile and atom-economical route to alkenyl and aryl dicarboxamides by catalytic aminocarbonylation is described.
Autor:
Maria José S. M. Moreno, Saul P. da Costa, André S. Campos Neves, R. M. L. M. Martins, Maria Luisa Sá e Melo
Publikováno v:
Tetrahedron. 54:13877-13886
21-Hydroxylation and acetoxylation of 20-oxosteroids, either α,β-unsaturated or β-substituted, were successfully achieved through oxidation of the corresponding silyl enol ethers with m -CPBA followed by smooth hydrolytic cleavage of the 21-alkyls
Autor:
Mariette M. Pereira, Rui M. B. Carrilho, László Kollár, Attila Takács, Maria José S. M. Moreno
Publikováno v:
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
A set of new steroid dimers linked through ring D–ring D were synthesized via catalytic diaminocarbonylation of 17-iodo-5α-androst-16-ene, in the presence of palladium–phosphine in situ catalysts and aliphatic or aromatic diamines as N -nucleoph
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a70ccd8c1b31894664bc21a66228c1c4
https://hdl.handle.net/10316/80826
https://hdl.handle.net/10316/80826
Autor:
Jorge A. R. Salvador, Elisiário J. Tavares da Silva, André S. Campos Neves, Maria José S. M. Moreno, Saul P. da Costa, R. M. L. M. Martins, Maria Luisa Sá e Melo
Publikováno v:
ChemInform. 30
An Henbest reduction, followed by the preparation of a silyl enol ether and oxidation in situ with m-CPBA has led to the neurosteroids 3α-hydroxy- and 3α,21-dihydroxy-5α-pregnanolones. Using testosterone as starting material, a new short synthesis
Autor:
Mariette M. Pereira, Bruno F. Machado, Joaquim L. Faria, Rui M. D. Nunes, Maria José S. M. Moreno
Publikováno v:
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
This paper describes the photochemical deposition of platinum onto TiO 2 surface and the full characterization of the catalysts using BET, XPS and TEM techniques. The 1 and 3 wt. % Pt/TiO 2 catalysts reveal high activity with 70% and 96% of α-diaste
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3406d1b671c46f9b74f6159ef4a4224e
https://hdl.handle.net/10216/102655
https://hdl.handle.net/10216/102655
Publikováno v:
Cuontas de la dona tierra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a74f20c328d14557a187104e1160175e
https://doi.org/10.14195/978-989-8074-86-7
https://doi.org/10.14195/978-989-8074-86-7
Autor:
Andreia F. Peixoto, Maria José S. M. Moreno, László Kollár, Sergio Castillón, Rui M. D. Nunes, Mariette M. Pereira, Carmen Claver, M. Rosa Axet
Publikováno v:
Journal of Molecular Catalysis A: Chemical
Journal of Molecular Catalysis A: Chemical, Elsevier, 2006, 247 (1-2), pp.275-282. ⟨10.1016/j.molcata.2005.11.058⟩
Journal of Molecular Catalysis A: Chemical, Elsevier, 2006, 247 (1-2), pp.275-282. ⟨10.1016/j.molcata.2005.11.058⟩
A comparative study of the ligand ( 5 – 10 ) effect on the rhodium catalytic activity and selectivity in the homogeneous hydrogenation of α,β-unsaturated oxosteroids ( 1 – 4 ) is reported. The highest activity for C C reduction was observed wit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7c64385398b8a572ce664d440b6e6b1f
https://hal.archives-ouvertes.fr/hal-02350985
https://hal.archives-ouvertes.fr/hal-02350985