Wavelet analysis of the magnetotail response to solar wind fluctuations during HILDCAA events

Autor: A. Marques de Souza Franco, E. Echer, M. José Alves Bolzan

Publikováno v: Annales Geophysicae, Vol 37, Pp 919-929 (2019)

In this work a study of the effects of the high-intensity long-duration continuous AE activity (HILDCAAs) events in the magnetotail was conducted. The aim of this study was to search the main frequencies during HILDCAAs in the Bx component of the geo

Externí odkaz: https://doaj.org/article/543efccd63ef4ba5ad934417a3c3333a

Styrene Epoxidation Over Heterogeneous Manganese(III) Complexes

Autor: I. Correia Neves, Agata Lisińska-Czekaj, Iwona Kuźniarska-Biernacka, Dionizy Czekaj, A. Maurício C. Fonseca, M. José Alves

Publikováno v: Archives of Metallurgy and Materials, Vol 61, Iss 3, Pp 1477-1482 (2016)
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP

The manganes(III) complex functionalised with 2,3-dihydropyridazine has been encapsulated in the supercages of the NaY zeolite using two different procedures, flexible ligand and in situ complex. The parent zeolite and the encapsulated manganese(III)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1c7b601818fba76aacf66b354967e2e5
https://doi.org/10.1515/amm-2016-0242

Ethyl 2-(Diisopropoxyphosphoryl)-2H-azirine-3-carboxylate: Reactions with Nucleophilic 1,3-Dienes

Autor: José E. Rodríguez-Borges, A. Gil Fortes, Xerardo García-Mera, Américo Lemos, M. José Alves

Publikováno v: Synthesis. 2009:3263-3266

Ethyl 2-(diisopropoxyphosphoryl)-2H azirine-3-carboxylate, the first example of an azirine bearing simultaneously ester and phosphonate groups was generated in situ and reacted with a number of 1,3-dienes. Cycloadducts or their ensuing rearranged pro

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::563ff0940108d0f7c47ca5f26c76d037
https://doi.org/10.1055/s-0029-1216945

A New Approach to the Synthesis ofN,N-Dialkyladenine Derivatives

Autor: M. Fernanda R. P. Proença, M. Alice Carvalho, Silvia Carvalho, Francisco H. Fernandes, M. José Alves, Alice Dias

Publikováno v: European Journal of Organic Chemistry. 2007:4881-4887

N,N-Dialkyladenine derivatives were prepared by two different reaction sequences starting from 5-amino-4-cyanoformimidoylimidazoles. When these imidazoles were treated with dimethylformamide diethyl acetal, a 5-aminomethyleneamino-4-cyanoformimidoyli

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e0f0a8933076a6efc02c40d4bb75e0ee
https://doi.org/10.1002/ejoc.200700416

Diels–Alder cycloaddition of electrophilic 2H-azirines with 3-(3-(tert-butyldimethylsilyloxy)buta-1,3-dienyl)oxazolidin-2-ones. Treatment of the cycloadducts under acidic conditions

Autor: A. Gil Fortes, F. Teixeira Costa, M. José Alves

Publikováno v: Tetrahedron. 62:3095-3102

3-(3-(tert-Butyldimethylsilyloxy)buta-1,3-dienyl)oxazolidin-2-one was reacted with several electrophilic 2H-azirines to give the expected cycloadducts in moderate to good yields. Treatment of the cycloadducts under acidic conditions gave six-membered

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4cbc4f1134e61e26d33317ab2ca776f2
https://doi.org/10.1016/j.tet.2006.01.035