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9. A solution containing the dicarbonylacetylacetonato
rhodium (0.035 g, 0.14 mmol), toluene (70 mL) and the
olefin 15 (3.0 g, 1.2 mmol) were placed in a 300 mL
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270 MHz) l 2.25 (m, 2H), 3.45–3.61 (m, 3H), 3.80 (m,
3H), 4.35 (t, J=7.5 Hz, 1H), 4.42–4.62 (m, 6H), 4.89 (m,
1H), 7.3 (m, 15H), 9.75 (s, 1H). 13C NMR (CDCl3, 67.5
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127.5, 127.8–128.7 (several signals), 138.0, 138.2, 138.5,
203.8. MS (ES) m/z (M+K+), 485 (base peak), 181.
Compound 17: 1H NMR (CDCl3, 270 MHz) l 3.46
(ABq, J=8.9 Hz, Dl=0.10 ppm, 2H), 3.59 (m, 3H), 3.80
(dd, J=2.2, 8.4 Hz, 1H), 4.00 (d, J=2.2 Hz, 1H), 4.13 (d,
J=7.0 Hz, 1H), 4.47 (ABq, J=11.9 Hz, Dl=0.08 ppm,
2H), 4.60 (ABq, J=11.4 Hz, Dl=0.22 ppm, 2H), 4.76
(ABq, J=11.6 Hz, Dl=0.31 ppm, 2H), 7.3 (m, 15H),
9.84 (s, 1H). 13C NMR (CDCl3, 67.5 MHz) l 50.1, 65.6,
69.2, 71.3, 71.5, 73.7, 74.7, 77.8, 79.2, 127.9–128.7 (sev-
eral signals), 137.4, 137.8, 138.4, 202.8. MS (ES) m/z
(M+Na+), 469 (base peak), 181.
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