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pro vyhledávání: '"Vera Lúcia Patrocinio Pereira"'
Autor:
Priscila Faustino dos Santos, Fernanda Priscila Nascimento Rodrigues da Silva, Sara Raposo Benfica da Silva, Vera Lúcia Patrocinio Pereira
Publikováno v:
Green Chemistry Letters and Reviews, Vol 17, Iss 1 (2024)
Two innovative and efficient routes were developed to produce glycerol-alkyl ethers employing Williamson reaction conditions in a heterogeneous medium. Thus, the ion exchange resin Amberlyst A26TM −OH form and KOH supported on alumina (KOH/Al2O3) w
Externí odkaz:
https://doaj.org/article/98be575ecacb40f1bb08e3ce4ddd1935
Autor:
Priscila Faustino dos Santos, Sara Raposo Benfica da Silva, Fernanda Priscila Nascimento Rodrigues da Silva, Jeronimo da Silva Costa, Jane Sayuri Inada, Vera Lúcia Patrocinio Pereira
Publikováno v:
Green Chemistry Letters and Reviews, Vol 12, Iss 4, Pp 389-394 (2019)
New eco-friendly conditions for Finkelstein reaction employing homogeneous media or alumina-supported reagents, both solventless, were utilized in the bromohydrins and iodohydrins synthesis from 1,3-dichlorohydrin (1,3-DCH), obtained from glycerol. T
Externí odkaz:
https://doaj.org/article/e9a45af671f040e2b99e1c8fee52c982
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 9, Iss 1, Pp 838-845 (2013)
Chiral nonracemic aminated nitroso acetals were synthesized via diastereoselective multicomponent [4 + 2]/[3 + 2] cycloadditions employing new (S,E)-γ-nitrogenated nitroalkenes 5a–c as heterodienes, ethyl vinyl ether (EVE) as a dienophile, and sel
Externí odkaz:
https://doaj.org/article/9bcbf5d37f604be4bba1b54eccfb58f8
Autor:
Vera Lúcia Patrocinio Pereira, André Luiz da Silva Moura, Daniel Pais Pires Vieira, Leandro Lara de Carvalho, Eliz Regina Bueno Torres, Jeronimo da Silva Costa
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 9, Iss 1, Pp 832-837 (2013)
New chiral (S,E)-γ-N,N-dibenzylated nitroalkenes 2a–c were synthesized from natural L-(α)-amino acids in five steps with overall yields of 68–88%. The conjugate addition of hydride, methoxide, nitronate and azide nucleophiles to 2a–c led to t
Externí odkaz:
https://doaj.org/article/cee773c734bf447b85d19c2acd9f4ecd
Autor:
Bruno Amaral, Meireles, Shaft Corrêa, Pinto, Vera Lúcia Patrocinio, Pereira, Gilda Guimarães, Leitão
Publikováno v:
Journal of separation science. 34(9)
In this work we report the purification of a crude acetin mixture into mono-, di- and triacetin by countercurrent chromatography. The process was initially tested on a small, semi-preparative scale (0.5 g) to determine its efficiency. The process was
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::5ae4dfb7498b27fec79339deeffdc411
https://pubmed.ncbi.nlm.nih.gov/21442750
https://pubmed.ncbi.nlm.nih.gov/21442750