Výsledky vyhledávání - "Ricardo Sercheli"

Photosubstitution of (Fulvalene)tetracarbonyldiruthenium by Alkenes and Alkynes: First Observation of Alkyne Coupling on Fulvalene Dimetals and Synthesis of a (Fulvalene)dimetallacyclopentadiene(alkene) Complex

Autor: Ricardo Sercheli, Glenn D. Whitener, Ian M. Wasser, Ming Chou Chen, Michael J. Eichberg, K. Peter C. Vollhardt

Publikováno v: Organometallics. 21:749-760

Irradiation (λmax = 300−375 nm) of FvRu2(CO)4 (1, Fv = η5:η5-bicyclopentadienyl) or (μ2-η1:η5-cyclopentadienyl)2Ru2(CO)4 (2) with dimethyl cis- or trans-butenedioate resulted in FvRu2(η2-trans-CHRCHR)(CO)3 (3, R = CO2CH3). Prolonged irradiat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::324d066a326ad2f44c8977be5b4deb4d
https://doi.org/10.1021/om0108797

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Cyclohexane oxidation continues to be a challenge

Autor: Ricardo Sercheli, Ricardo Pereira, Mário César Guerreiro, Emerson L. Pires, Ulf Schuchardt, Estevam V. Spinacé, Dalmo Mandelli, Rosenira Serpa da Cruz, Dilson Cardoso

Publikováno v: Applied Catalysis A: General. 211:1-17

Many efforts have been made to develop new catalysts to oxidize cyclohexane under mild conditions. Herein, we review the most interesting systems for this process with different oxidants such as hydrogen peroxide, tert -butyl hydroperoxide and molecu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f27044a290d230e23bfdc9349a98db6b
https://doi.org/10.1016/s0926-860x(01)00472-0

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Guanidines encapsulated in zeolite Y and anchored to MCM-41: synthesis and catalytic activity

Autor: Roger A. Sheldon, Ricardo Sercheli, Rogério Matheus Vargas, Ulf Schuchardt

Publikováno v: Journal of Molecular Catalysis A: Chemical. 148:173-181

The preparation and characterisation of guanidines encapsulated in zeolite Y and anchored to MCM-41 are described. The catalytic activity of the immobilised and free guanidines were tested in the aldol reaction of benzaldehyde with acetone. In homoge

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3232bf0b2a2c82308f51a3368ddecc78
https://doi.org/10.1016/s1381-1169(99)00054-0

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Alkylguanidine-catalyzed heterogeneous transesterification of soybean oil

Autor: Ricardo Sercheli, Rogério Matheus Vargas, Ulf Schuchardt

Publikováno v: Journal of the American Oil Chemists' Society. 76:1207-1210

Transesterification of soybean oil with methanol has been carried out in the presence of heterogenized alkylguanidines as catalysts. The alkylguanidines were anchored to modified polystyrene or siliceous MCM-41, encapsulated in the supercages of zeol

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::901063a373f365381aaa4e1590fa2fc1
https://doi.org/10.1007/s11746-999-0095-2

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Transesterification of vegetable oils: a review

Autor: Ulf Schuchardt, Rogério Matheus Vargas, Ricardo Sercheli

Publikováno v: Journal of the Brazilian Chemical Society, Volume: 9, Issue: 3, Pages: 199-210, Published: MAY 1998
Journal of the Brazilian Chemical Society, Vol 9, Iss 3, Pp 199-210 (1998)
Journal of the Brazilian Chemical Society v.9 n.3 1998
Journal of the Brazilian Chemical Society
Sociedade Brasileira de Química (SBQ)
instacron:SBQ

The transesterification of vegetable oils with methanol as well as the main uses of the fatty acid methyl esters are reviewed. The general aspects of this process and the applicability of different types of catalysts (acids, alkaline metal hydroxides

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d01111da10eb4619de1f3a7faf06a8f1
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50531998000300002&lng=en&tlng=en

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Encapsulation of N,N′,N″-tricyclohexylguanidine in hydrophobic zeolite Y: Synthesis and catalytic activity

Autor: Ricardo Sercheli, Mário César Guerreiro, Roger A. Sheldon, Ulf Schuchardt, Alfredo L. B. Ferreira, Rogério Matheus Vargas

Publikováno v: Repositório Institucional da UFBA
Universidade Federal da Bahia (UFBA)
instacron:UFBA

Texto completo: acesso restrito. p.1325–1328 Submitted by Suelen Reis (suelen_suzane@hotmail.com) on 2013-02-04T14:24:50Z No. of bitstreams: 1 Sercheli.pdf: 170840 bytes, checksum: a8ae02fd1c2216796aa0a31d3326e933 (MD5) Made available in DSpace on

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3af308439fd2a1fa4a9e9269211ab19c
http://www.repositorio.ufba.br/ri/handle/ri/8333

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