Ruthenium indenylidene complexes bearing N-alkyl/N-mesityl-substituted N-heterocyclic carbene ligands
| Parent link: | Dalton Transactions: The international journal for inorganic, organometallic and bioinorganic chemistry.— , 1972- № 44.— 2015.— [P. 11835-11842] |
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| Institution som forfatter: | |
| Andre forfattere: | , , , , |
| Summary: | Title screen We report on the synthesis and characterization of second generation ruthenium indenylidene catalysts bearing unsymmetrical N-heterocyclic carbene (NHC) ligands denoted as RuCl2(3-phenyl-1-indenylidene)(1-mesityl-3-R-4,5-dihydroimidazol-2-ylidene)(PCy3), in which R is methyl 8a, octyl 8b or cyclohexyl 8c. The characterization of 8a–c was performed by NMR spectroscopy, elemental analysis, IR, HRMS and single-crystal X-ray diffraction analysis. In addition, the catalytic activity of the obtained initiators was evaluated in various representative metathesis reactions. The results reveal that the complexes 8a–c, bearing an N-alkyl side on the NHC, show a faster catalytic initiation than the reference complex 2. Complex 8a, which performs the best among the investigated indenylidene complexes, exhibits slower initiation but better overall efficiency than its benzylidene analogue 1c, especially in a low catalyst loading. Режим доступа: по договору с организацией-держателем ресурса |
| Sprog: | engelsk |
| Udgivet: |
2015
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| Fag: | |
| Online adgang: | http://dx.doi.org/10.1039/c5dt00967g |
| Format: | Electronisk Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=648270 |
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| 200 | 1 | |a Ruthenium indenylidene complexes bearing N-alkyl/N-mesityl-substituted N-heterocyclic carbene ligands |f Yu Baoyi [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: p. 11841-11842 (33 tit.)] | ||
| 330 | |a We report on the synthesis and characterization of second generation ruthenium indenylidene catalysts bearing unsymmetrical N-heterocyclic carbene (NHC) ligands denoted as RuCl2(3-phenyl-1-indenylidene)(1-mesityl-3-R-4,5-dihydroimidazol-2-ylidene)(PCy3), in which R is methyl 8a, octyl 8b or cyclohexyl 8c. The characterization of 8a–c was performed by NMR spectroscopy, elemental analysis, IR, HRMS and single-crystal X-ray diffraction analysis. In addition, the catalytic activity of the obtained initiators was evaluated in various representative metathesis reactions. The results reveal that the complexes 8a–c, bearing an N-alkyl side on the NHC, show a faster catalytic initiation than the reference complex 2. Complex 8a, which performs the best among the investigated indenylidene complexes, exhibits slower initiation but better overall efficiency than its benzylidene analogue 1c, especially in a low catalyst loading. | ||
| 333 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | |t Dalton Transactions |o The international journal for inorganic, organometallic and bioinorganic chemistry |d 1972- | ||
| 463 | |t № 44 |v [P. 11835-11842] |d 2015 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 701 | 0 | |a Yu Baoyi | |
| 701 | 0 | |a Fatma B. Hamad | |
| 701 | 0 | |a Bert Sels | |
| 701 | 0 | |a Kristof Van Hecke | |
| 701 | 1 | |a Verpoort |b F. V. K. |c Chemical Engineer |c Professor of Tomsk Polytechnic University, doctor of chemical Sciences |f 1963- |g Frensis Valter Kornelius |3 (RuTPU)RU\TPU\pers\35059 |9 18334 | |
| 712 | 0 | 2 | |a Национальный исследовательский Томский политехнический университет |b Институт природных ресурсов |b Кафедра технологии органических веществ и полимерных материалов |3 (RuTPU)RU\TPU\col\18659 |9 27112 |
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