Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Timothy John Brocksom"'
Autor:
Damião Pergentino de Sousa, Francisco de Assis Oliveira, Daniel Dias Rufino Arcanjo, Diogo Vilar da Fonsêca, Allana Brunna S. Duarte, Celma de Oliveira Barbosa, Thomas Prates Ong, Timothy John Brocksom
Publikováno v:
Biomedicines, Vol 12, Iss 6, p 1185 (2024)
The importance of essential oils and their components in the industrial sector is attributed to their chemical characteristics and their application in the development of products in the areas of cosmetology, food, and pharmaceuticals. However, the p
Externí odkaz:
https://doaj.org/article/c6c75127d50b445ba5cb7e41335bc088
Autor:
Rodrigo Costa e Silva, Luely Oliveira da Silva, Aloisio de Andrade Bartolomeu, Timothy John Brocksom, Kleber Thiago de Oliveira
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 16, Iss 1, Pp 917-955 (2020)
In this review we present relevant and recent applications of porphyrin derivatives as photocatalysts in organic synthesis, involving both single electron transfer (SET) and energy transfer (ET) mechanistic approaches. We demonstrate that these highl
Externí odkaz:
https://doaj.org/article/d7b6bc8baaec4ddbb39b563568da5b5d
Publikováno v:
Molecules, Vol 25, Iss 9, p 2164 (2020)
The synthesis of the new dye 1,6-methano[10]annulenecyanine is described. For this purpose, the 3,4-dicyano-1,6-methano[10]annulene and 3,4-carboxyimide-1,6-methano[10]annulene buildings blocks were synthesized in six to eight steps. In both cases, t
Externí odkaz:
https://doaj.org/article/84df495c44d0490ca5667eebc03a243f
Publikováno v:
Química Nova, Vol 33, Iss 10, Pp 2211-2218 (2010)
The Diels-Alder reaction continues to be the premier method for the construction of complex organic molecules. In the last 10 years many developments have been introduced, and have led to increased utility of this reaction. In this review we present
Externí odkaz:
https://doaj.org/article/9adc89abb3a64291b1133eaf59e2b992
Publikováno v:
Química Nova, Vol 31, Iss 4, Pp 937-945 (2008)
The bakkenolide group of sesquiterpenes has been a focal point of synthetic efforts amongst several research laboratories all linked to our common origins at the Chemistry Institute at the State University in São Paulo. In this review we would like
Externí odkaz:
https://doaj.org/article/2058cc16d0f04200870f71d812ecb716
Publikováno v:
Molecules, Vol 11, Iss 2, Pp 148-155 (2006)
A series of three para-benzoquinone mono-oximes and four oxy-derivatives were prepared and tested for their antidepressant properties. The (4E) oxime of 2-isopropyl-5- methyl-para-benzoquinone (4) and the corresponding 2-diethylamino-ethyl derivative
Externí odkaz:
https://doaj.org/article/b3338a39e99949c08a20fa317ebf2db9
Publikováno v:
Química Nova, Vol 28, Iss 4, Pp 692-702 (2005)
The olefin metathesis reaction allows the exchange of complex alkyl units between two olefins, with the formation of a new olefinic link and a sub-product olefin usually ethylene. This reaction has found extensive application in the last ten years wi
Externí odkaz:
https://doaj.org/article/9a0bd04c2bfd4d0faa078cb33c4efca1
Autor:
Timothy John Brocksom
Publikováno v:
Química Nova, Vol 30, Iss 6, Pp 1394-1396 (2007)
The NAS/CNPq programme in Chemistry ran from 1969 to 1974, and brought recent PhD and post-doctoral chemists to the Chemistry Institutes at the University of São Paulo and the Federal University of Rio de Janeiro. The purpose was to create and direc
Externí odkaz:
https://doaj.org/article/165e75e20c8a48deaa52900782a3df5b
Publikováno v:
Química Nova, Vol 20, Iss spe, Pp 29-39 (1997)
The post-graduate teaching of chemistry in Brazil over the last years is discussed, including comparisons with some other sciences and also experiences in the United States and the United Kingdom. We have also compared the more recent situation with
Externí odkaz:
https://doaj.org/article/16298b8c4cca434f8c6f5766530cb5fa
Autor:
Kleber Thiago de Oliveira, Pedro Pôssa de Castro, Gabriel Martins Ferreira Batista, Giovanni Wilson Amarante, Timothy John Brocksom
Publikováno v:
Current Topics in Medicinal Chemistry. 23
Abstract: Over the last two decades, with the advent of continuous flow technologies, continuous processes have emerged as a major area in organic synthesis. In this context, continuous flow processes have been increasing in the preparation of Active