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Tetrahedron Letters (78)
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Dubreuil, J. F., & Bazureau, J. P. (2000). Rate accelerations of 1,3-dipolar cycloaddition reactions in ionic liquids. Tetrahedron Letters, 41(38), 7351–7355.

Authors 2
  1. Joan Fraga Dubreuil (first)
  2. Jean Pierre Bazureau (additional)
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  27. Selected spectral data of 3-(5-carboxypentyl)-1-methylimidazolium tetrafluoroborate ([capemim][BF4]): 1H NMR (acetone d6, 300 MHz, TMS) δ 1.40 (m, 2H); 1.64 (quint., 2H, J=7.7 Hz); 1.97 (quint., 2H, J=7.5 Hz); 2.32 (t, 2H, J=7.4 Hz); 4.02 (s, 3H); 4.35 (t, 2H, J=7.3 Hz); 7.68 (t, 1H, J=1.7 Hz, H-4); 7.75 (t, 1H, J=1.6 Hz, H-5); 8.96 (s, 1H, H-2); 13C NMR (acetone d6, 75 MHz, TMS) δ 24.91 (tm, J=127 Hz); 26.23 (tm, J=125 Hz); 30.52 (tm, J=128 Hz); 33.94 (tm, J=127 Hz); 36.63 (q, J=144 Hz); 50.23 (tm, J=144 Hz); 123.43 (dm, J=202 Hz, C-5); 124.80 (dm, J=203 Hz, C-4); 137.67 (dm, J=216 Hz, C-2); 174.95 (sm, CO). After filtration of the crude reaction mixture and evaporation of MeCN by rotary evaporation, [capemim][BF4] is dried in vacuo to avoid moisture. It is recommendable to handle under an inert atmosphere at 4°C.
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Dates
Type When
Created 23 years, 1 month ago (July 25, 2002, 10:21 a.m.)
Deposited 5 years, 7 months ago (Jan. 9, 2020, 1:34 a.m.)
Indexed 1 week, 2 days ago (Aug. 23, 2025, 12:58 a.m.)
Issued 25 years ago (Sept. 1, 2000)
Published 25 years ago (Sept. 1, 2000)
Published Print 25 years ago (Sept. 1, 2000)
Funders 0

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@article{Dubreuil_2000, title={Rate accelerations of 1,3-dipolar cycloaddition reactions in ionic liquids}, volume={41}, ISSN={0040-4039}, url={http://dx.doi.org/10.1016/s0040-4039(00)01237-5}, DOI={10.1016/s0040-4039(00)01237-5}, number={38}, journal={Tetrahedron Letters}, publisher={Elsevier BV}, author={Dubreuil, Joan Fraga and Bazureau, Jean Pierre}, year={2000}, month=sep, pages={7351–7355} }