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For reviews on bismuth(III) trifluoromethanesulfonate, see: (a) Antoniotti, S. Synlett 2003, 1566.
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25
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26844520714
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Callens, E.1
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52949132150
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To the best of our knowledge, there are only two successful reports 4,7c on the use of this type of compound in the cyclotrimerization process
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4,7c on the use of this type of compound in the cyclotrimerization process.
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34
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52949109682
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The reaction was very slow in refluxing toluene 12 h, 17
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The reaction was very slow in refluxing toluene (12 h, 17%).
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35
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52949092206
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7c gave the product in 26% and 32% yields, respectively.
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7c gave the product in 26% and 32% yields, respectively.
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36
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52949099429
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10b
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10b
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37
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0033534338
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Bismuth(III) trifluoromethanesulfonate tetrahydrate was prepared according to the method described in the literature
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Bismuth(III) trifluoromethanesulfonate tetrahydrate was prepared according to the method described in the literature: Labrouillere, M.; Le Roux, C.; Gaspard, H.; Laporterie, A.; Dubac, J. Tetrahedron Lett. 1999, 40, 285.
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Labrouillere, M.1
Le Roux, C.2
Gaspard, H.3
Laporterie, A.4
Dubac, J.5
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38
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52949123154
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Selected Physical and Spectroscopic Data 1,3,5-Triphenylbenzene Mp 174.1-174.7°C (Lit.4 175-176°C, MS (EI, m/z, 306 [M, 1,3,5-Tris(4-methylphenyl)benzene Mp 175.7-176.9°C (Lit.5 178°C, MS (EI, m/z, 348 [M, 1,3,5-Tris[4-(methylethyl)phenyl]benzene Mp 167.5-168.1°C (Lit. 5 166°C, MS (EI, m/z, 432 [M, 1,3,5-Tris(4-phenylphenyl)benzene Mp 236.2-238.0°C (Lit.4 241°C, MS (EI, m/z, 534 [M, 1,3,5-Tris(4- fluorophenyl)benzene Mp 236.5-238.0°C (Lit.5 238°C, 1H NMR (500 MHz, CDCl3, δ, 7.17 (t-like, J, 8.6 Hz, 6 H, 7.61-7.65 (m, 6 H, 7.66 (s, 3 H, 13C NMR (125 MHz, CDCl3, δ, 115.8 (d, J, 21.6 Hz, 124.8, 128.9 (d, J, 8.3 Hz, 137.0 (d, J, 4.1 Hz, 141.5, 162.7 d, J, 245.8 Hz
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