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General Procedure for Ru-Catalyzed Cyclotrimerization: The catalyst RuCl(Cp*)(cod, 2 mol, was added to the solution of diyne (0.15 mmol) and alkyne (0.6 mmol) in degassed DCE under an argon atmosphere. The resulting mixture was stirred at r.t. until the reaction completion (TLC control, The solvent was removed under reduced pressure and the crude product was purified by column chromatography on silica gel (eluent: EtOAc-PE, Data for Compound 6a: oil. 1H NMR (400 MHz, DMSO-d6, 80 °C, δ, 3.61 (br s, 3 H, OMe, 4.84 (d, JAB, 15.2 Hz, 1 H, NCH2, 5.03 (d, JAB, 15.2 Hz, 1 H, NCH2, 5.23 (s, 2 H, OCH2, 7.34-7.56 (m, 9 H, Ar, 19F NMR (282 MHz, DMSO-d6, TFA, 80 °C, δ, 5.3 s, 3 F, CF3, Anal. Calcd for C19H 16F3NO4: C, 60.16; H, 4.25; N, 3.69. Found: C, 60.21; H
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4: C, 61.07; H, 4.61; N, 3.56. Found: C, 60.99; H, 4.55; N, 3.67.
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51
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40949164372
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Data for Compound 10: mp 234 °C (dec, 1H NMR (300 MHz, DMSO-d6, δ, 3.35 (d, JAB, 15.4 Hz, 1 H, CH2, 3.39 (d, JAB, 15.4 Hz, 1 H, CH2, 3.86 (d, JAB, 15.5 Hz, 1 H, NCH 2, 4.06 (d, JAB, 15.5 Hz, 1 H, NCH2, 7.23 (m, 4 H, Ar, 19F NMR (282 MHz, DMSO-d6, δ, 3.07 (s, 3 F, CF3, 13C NMR (150.9 MHz, DMSO-d6, δ, 31.03, 45.12, 64.01 (q, 2JC-F, 29.9 Hz, 120.91 q, 1JC-F, 281.3 Hz, 127.31, 128.01, 128.41, 129.21, 133.81, 138.14, 168.41. Anal. Calcd for C12H12F3NO2: C, 53.88; H, 4.11; N, 5.71. Found: C, 53.61; H, 4.32; N, 5.34
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2: C, 53.88; H, 4.11; N, 5.71. Found: C, 53.61; H, 4.32; N, 5.34.
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