DESAFIO NA ESCOLHA DOS SOLVENTES EM SÍNTESE - O WORKUP COMO EXEMPLO
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Química Nova (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422019004800971 |
Resumo: | A procedure for the assessment and optimization of the greenness of solvents in synthesis was developed. It involves two optimization components, aiming at the optimization of both the intrinsic greenness of the solvents and their efficiency to improve the overall green performance of the synthesis, evaluated with mass, energy and time greenness metrics. The procedure was tested in a study with educational purpose for assessing and improving the greenness of solvents used in the workup step of a ionic liquid synthesis that involves a solventless reaction step (1-hexyl-3-methylimidazolium chloride) and proved useful to systematize the aspects that should be considered to choose the solvents used in the workup. The results show that there may be a competition in the solvent choice between a safer solvent and a more hazardous solvent with better performance of the overall synthesis process, which requires optimization for reaching a balanced solution. The study illustrates the problems of the substitution of solvents in synthetic processes to improve greenness, as well as the importance of the utilization of a battery of greenness metrics for evaluation of the overall synthesis outcomes. |
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DESAFIO NA ESCOLHA DOS SOLVENTES EM SÍNTESE - O WORKUP COMO EXEMPLOgreen chemistrygreen chemistry educationsynthesis solventsgreenness improvementgreen metricsA procedure for the assessment and optimization of the greenness of solvents in synthesis was developed. It involves two optimization components, aiming at the optimization of both the intrinsic greenness of the solvents and their efficiency to improve the overall green performance of the synthesis, evaluated with mass, energy and time greenness metrics. The procedure was tested in a study with educational purpose for assessing and improving the greenness of solvents used in the workup step of a ionic liquid synthesis that involves a solventless reaction step (1-hexyl-3-methylimidazolium chloride) and proved useful to systematize the aspects that should be considered to choose the solvents used in the workup. The results show that there may be a competition in the solvent choice between a safer solvent and a more hazardous solvent with better performance of the overall synthesis process, which requires optimization for reaching a balanced solution. The study illustrates the problems of the substitution of solvents in synthetic processes to improve greenness, as well as the importance of the utilization of a battery of greenness metrics for evaluation of the overall synthesis outcomes.Sociedade Brasileira de Química2019-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422019004800971Química Nova v.42 n.8 2019reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.21577/0100-4042.20170400info:eu-repo/semantics/openAccessPinto,José Ricardo M.Ribeiro,Maria Gabriela T. C.Machado,Adélio A. S. C.por2019-10-15T00:00:00Zoai:scielo:S0100-40422019004800971Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2019-10-15T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
DESAFIO NA ESCOLHA DOS SOLVENTES EM SÍNTESE - O WORKUP COMO EXEMPLO |
title |
DESAFIO NA ESCOLHA DOS SOLVENTES EM SÍNTESE - O WORKUP COMO EXEMPLO |
spellingShingle |
DESAFIO NA ESCOLHA DOS SOLVENTES EM SÍNTESE - O WORKUP COMO EXEMPLO Pinto,José Ricardo M. green chemistry green chemistry education synthesis solvents greenness improvement green metrics |
title_short |
DESAFIO NA ESCOLHA DOS SOLVENTES EM SÍNTESE - O WORKUP COMO EXEMPLO |
title_full |
DESAFIO NA ESCOLHA DOS SOLVENTES EM SÍNTESE - O WORKUP COMO EXEMPLO |
title_fullStr |
DESAFIO NA ESCOLHA DOS SOLVENTES EM SÍNTESE - O WORKUP COMO EXEMPLO |
title_full_unstemmed |
DESAFIO NA ESCOLHA DOS SOLVENTES EM SÍNTESE - O WORKUP COMO EXEMPLO |
title_sort |
DESAFIO NA ESCOLHA DOS SOLVENTES EM SÍNTESE - O WORKUP COMO EXEMPLO |
author |
Pinto,José Ricardo M. |
author_facet |
Pinto,José Ricardo M. Ribeiro,Maria Gabriela T. C. Machado,Adélio A. S. C. |
author_role |
author |
author2 |
Ribeiro,Maria Gabriela T. C. Machado,Adélio A. S. C. |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Pinto,José Ricardo M. Ribeiro,Maria Gabriela T. C. Machado,Adélio A. S. C. |
dc.subject.por.fl_str_mv |
green chemistry green chemistry education synthesis solvents greenness improvement green metrics |
topic |
green chemistry green chemistry education synthesis solvents greenness improvement green metrics |
description |
A procedure for the assessment and optimization of the greenness of solvents in synthesis was developed. It involves two optimization components, aiming at the optimization of both the intrinsic greenness of the solvents and their efficiency to improve the overall green performance of the synthesis, evaluated with mass, energy and time greenness metrics. The procedure was tested in a study with educational purpose for assessing and improving the greenness of solvents used in the workup step of a ionic liquid synthesis that involves a solventless reaction step (1-hexyl-3-methylimidazolium chloride) and proved useful to systematize the aspects that should be considered to choose the solvents used in the workup. The results show that there may be a competition in the solvent choice between a safer solvent and a more hazardous solvent with better performance of the overall synthesis process, which requires optimization for reaching a balanced solution. The study illustrates the problems of the substitution of solvents in synthetic processes to improve greenness, as well as the importance of the utilization of a battery of greenness metrics for evaluation of the overall synthesis outcomes. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-08-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422019004800971 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422019004800971 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
10.21577/0100-4042.20170400 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Química |
publisher.none.fl_str_mv |
Sociedade Brasileira de Química |
dc.source.none.fl_str_mv |
Química Nova v.42 n.8 2019 reponame:Química Nova (Online) instname:Sociedade Brasileira de Química (SBQ) instacron:SBQ |
instname_str |
Sociedade Brasileira de Química (SBQ) |
instacron_str |
SBQ |
institution |
SBQ |
reponame_str |
Química Nova (Online) |
collection |
Química Nova (Online) |
repository.name.fl_str_mv |
Química Nova (Online) - Sociedade Brasileira de Química (SBQ) |
repository.mail.fl_str_mv |
quimicanova@sbq.org.br |
_version_ |
1750318119750991872 |