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Volumn 48, Issue 23, 2009, Pages 11147-11160

Synthesis of copper(I) complexes containing enantiopure pybox ligands. First assays on enantioselective synthesis of propargylamines catalyzed by isolated copper(I) complexes

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EID: 72949110857     PISSN: 00201669     EISSN: None     Source Type: Journal    
DOI: 10.1021/ic901527x     Document Type: Article
Times cited : (56)

References (81)
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    • 6] (L = phosphine) represents, to the best of our knowledge, the unique example wherein the pybox ligand shows a monodentate coordination: Cuervo, D.; Diez, J.; Gamasa, M. P.; GarcíaGranda, S.; Gimeno, J. Inorg. Chem. 2002, 41, 4999-5001.
    • 6] (L = phosphine) represents, to the best of our knowledge, the unique example wherein the pybox ligand shows a monodentate coordination: Cuervo, D.; Diez, J.; Gamasa, M. P.; GarcíaGranda, S.; Gimeno, J. Inorg. Chem. 2002, 41, 4999-5001.
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    • and references therein
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    • First enantioselective synthesis of α- aminopropargylphosphonates: Dodda, R.; Zhao, C.-G. Tetrahedron Lett. 2007, 48, 4339-4342.
    • (d) First enantioselective synthesis of α- aminopropargylphosphonates: Dodda, R.; Zhao, C.-G. Tetrahedron Lett. 2007, 48, 4339-4342.
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    • 2 has also been characterized: Gelalcha, F. G.; Schulz, M.; Kluge, R.; Sieler, J. J. Chem. Soc., Dalton Trans. 2002, 2517-2521.
    • 2 has also been characterized: Gelalcha, F. G.; Schulz, M.; Kluge, R.; Sieler, J. J. Chem. Soc., Dalton Trans. 2002, 2517-2521.
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    • 2+, are not observed.
    • 2+, are not observed.
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    • Pregosin has shown the great potential that this technique offers of the study of organometallic compounds. See: (a) Valentini, M.; Pregosin, P. S.; Rüegger, H. Helv. Chim. Acta 2001, 84, 2833-2853.
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    • 19F DOSY experiments, the ledbpgp2s pulse sequence gave a better signal-to-noise ratio than the dstebpgp3s sequence. The diffusion time (Δ, Figure 7a) and the gradient duration (δ, Figure 7a) were optimized with the ledbpgp2s1d sequence previously for each measurement until a progressive decay of the signal intensities was obtained to guarantee a good resolution in the diffusion dimension.
    • 19F DOSY experiments, the ledbpgp2s pulse sequence gave a better signal-to-noise ratio than the dstebpgp3s sequence. The diffusion time (Δ, Figure 7a) and the gradient duration (δ, Figure 7a) were optimized with the ledbpgp2s1d sequence previously for each measurement until a progressive decay of the signal intensities was obtained to guarantee a good resolution in the diffusion dimension.
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    • X-ray was calculated by dividing the crystallographic unit-cell by the number of molecular entities contained in the unit cell, assuming that these have a spherical shape, and subtracting the van der Waals of the counterions: Zhao, Y. H.; Abraham, M. H.; Zissimos, A. M. J. Org. Chem. 2003, 68, 7368-7373.
    • X-ray) was calculated by dividing the crystallographic unit-cell volume by the number of molecular entities contained in the unit cell, assuming that these have a spherical shape, and subtracting the van der Waals volumes of the counterions: Zhao, Y. H.; Abraham, M. H.; Zissimos, A. M. J. Org. Chem. 2003, 68, 7368-7373.
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    • For reviews see
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    • Alternative approaches using other metals (e.g., zinc, zirconium) and chiral alkynylborane reagents have been also developed: (a) Zani, L.; Eichhorn, T.; BoIm, C. Chem. Eur. J. 2007, 13, 2587-2600.
    • Alternative approaches using other metals (e.g., zinc, zirconium) and chiral alkynylborane reagents have been also developed: (a) Zani, L.; Eichhorn, T.; BoIm, C. Chem. Eur. J. 2007, 13, 2587-2600.
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    • Electrostatically immobilised pybox: McDonagh, C.; O'Conghaile, P.; Gebbink, R. J. M. K.; O'Leary, P. Tetrahedron. Lett. 2007, 48, 4387-1390.
    • (b) Electrostatically immobilised pybox: McDonagh, C.; O'Conghaile, P.; Gebbink, R. J. M. K.; O'Leary, P. Tetrahedron. Lett. 2007, 48, 4387-1390.
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    • 2 do not provide evidence of Cu(I)-imine or Cu(I)-alkyne coordination.
    • 2 do not provide evidence of Cu(I)-imine or Cu(I)-alkyne coordination.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.