DMSO molecule as ancillary ligand in Ru-based catalysts for ring opening metathesis polymerization
Autor(a) principal: | |
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Data de Publicação: | 2010 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Journal of the Brazilian Chemical Society (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532010000200013 |
Resumo: | The ring-opening metathesis polymerization (ROMP) of norbornene (NBE) occurs in the presence of the fac-[RuCl2(S-DMSO)3(O-DMSO)] complex and ethyldiazoacetate (5 μL), where DMSO is S- or O-bonded dimethylsulfoxide. The yield is 62% (PDI = 1.64) at room temperature for 5 min and 88% (PDI = 1.93) at 50 ºC for 30 min, with [NBE]/[Ru] = 516 in CHCl3. The yield is 90% (PDI = 1.64) in the presence of NBu4ClO4 at room temperature for 5 min. The complex is practically inactive when one or two molecules of DMSO are replaced by pyridine, imidazole, 2-methyl-imidazole or benzimidazole. The in situ formation of the catalytic species and the behavior of the DMSO molecules as ancillary ligands in the reactivity of the RuII complexes are discussed. |
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Journal of the Brazilian Chemical Society (Online) |
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DMSO molecule as ancillary ligand in Ru-based catalysts for ring opening metathesis polymerizationolefin metathesisROMPancillary ligandrutheniumDMSOThe ring-opening metathesis polymerization (ROMP) of norbornene (NBE) occurs in the presence of the fac-[RuCl2(S-DMSO)3(O-DMSO)] complex and ethyldiazoacetate (5 μL), where DMSO is S- or O-bonded dimethylsulfoxide. The yield is 62% (PDI = 1.64) at room temperature for 5 min and 88% (PDI = 1.93) at 50 ºC for 30 min, with [NBE]/[Ru] = 516 in CHCl3. The yield is 90% (PDI = 1.64) in the presence of NBu4ClO4 at room temperature for 5 min. The complex is practically inactive when one or two molecules of DMSO are replaced by pyridine, imidazole, 2-methyl-imidazole or benzimidazole. The in situ formation of the catalytic species and the behavior of the DMSO molecules as ancillary ligands in the reactivity of the RuII complexes are discussed.Sociedade Brasileira de Química2010-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532010000200013Journal of the Brazilian Chemical Society v.21 n.2 2010reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0103-50532010000200013info:eu-repo/semantics/openAccessSantana,Sirlane A. A.Carvalho Jr.,Valdemiro P.Lima-Neto,Benedito S.eng2010-03-16T00:00:00Zoai:scielo:S0103-50532010000200013Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2010-03-16T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
DMSO molecule as ancillary ligand in Ru-based catalysts for ring opening metathesis polymerization |
title |
DMSO molecule as ancillary ligand in Ru-based catalysts for ring opening metathesis polymerization |
spellingShingle |
DMSO molecule as ancillary ligand in Ru-based catalysts for ring opening metathesis polymerization Santana,Sirlane A. A. olefin metathesis ROMP ancillary ligand ruthenium DMSO |
title_short |
DMSO molecule as ancillary ligand in Ru-based catalysts for ring opening metathesis polymerization |
title_full |
DMSO molecule as ancillary ligand in Ru-based catalysts for ring opening metathesis polymerization |
title_fullStr |
DMSO molecule as ancillary ligand in Ru-based catalysts for ring opening metathesis polymerization |
title_full_unstemmed |
DMSO molecule as ancillary ligand in Ru-based catalysts for ring opening metathesis polymerization |
title_sort |
DMSO molecule as ancillary ligand in Ru-based catalysts for ring opening metathesis polymerization |
author |
Santana,Sirlane A. A. |
author_facet |
Santana,Sirlane A. A. Carvalho Jr.,Valdemiro P. Lima-Neto,Benedito S. |
author_role |
author |
author2 |
Carvalho Jr.,Valdemiro P. Lima-Neto,Benedito S. |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Santana,Sirlane A. A. Carvalho Jr.,Valdemiro P. Lima-Neto,Benedito S. |
dc.subject.por.fl_str_mv |
olefin metathesis ROMP ancillary ligand ruthenium DMSO |
topic |
olefin metathesis ROMP ancillary ligand ruthenium DMSO |
description |
The ring-opening metathesis polymerization (ROMP) of norbornene (NBE) occurs in the presence of the fac-[RuCl2(S-DMSO)3(O-DMSO)] complex and ethyldiazoacetate (5 μL), where DMSO is S- or O-bonded dimethylsulfoxide. The yield is 62% (PDI = 1.64) at room temperature for 5 min and 88% (PDI = 1.93) at 50 ºC for 30 min, with [NBE]/[Ru] = 516 in CHCl3. The yield is 90% (PDI = 1.64) in the presence of NBu4ClO4 at room temperature for 5 min. The complex is practically inactive when one or two molecules of DMSO are replaced by pyridine, imidazole, 2-methyl-imidazole or benzimidazole. The in situ formation of the catalytic species and the behavior of the DMSO molecules as ancillary ligands in the reactivity of the RuII complexes are discussed. |
publishDate |
2010 |
dc.date.none.fl_str_mv |
2010-01-01 |
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=S0103-50532010000200013 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532010000200013 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0103-50532010000200013 |
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 |
Journal of the Brazilian Chemical Society v.21 n.2 2010 reponame:Journal of the Brazilian Chemical Society (Online) instname:Sociedade Brasileira de Química (SBQ) instacron:SBQ |
instname_str |
Sociedade Brasileira de Química (SBQ) |
instacron_str |
SBQ |
institution |
SBQ |
reponame_str |
Journal of the Brazilian Chemical Society (Online) |
collection |
Journal of the Brazilian Chemical Society (Online) |
repository.name.fl_str_mv |
Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ) |
repository.mail.fl_str_mv |
||office@jbcs.sbq.org.br |
_version_ |
1750318170634190848 |