LETTER
(79%) 1H NMR (299.89 MHz, C6D6, 25 °C) 8.44 (dd, J = 7
Ruthenium Indenylidene and Vinylidene Complexes
941
162.8, 141.9, 137.7, 132.9 (s, C1 of Ph), 128.2, 125.5, 121.6
(each s, C2,6 of C6H11), 117.7, 111.8, 108.3 (t, JPC = 5 Hz,
Ru = C = C); 31P{1H} NMR (C6D6, 25 °C): 49.07 Hz (s).
Anal. Calcd for C41H51BrClN2O3PRu; C, 56.78, H, 5.93, N,
3.23. Found: C, 56.81, H, 6.32, N, 3.30.
Hz, 1H, H-23), 8.17 (s, 1H, H-7), 7.71 (d, J = 4 Hz, 2H, H-
26), 7.46 (d, J = 5 Hz, 1H, H-28), 7.44 (dd, J = 8.7, 2.4 Hz,
1H, H-5), 7.38 (dd, J = 6.5, 2.1 Hz, 2H, H-27), 7.37 (s, 1H,
H-16), 7.30 (m, 1H, H-21), 7.25 (m, 1H, H-22), 7.23 (dd,
J = 7.0, 2.2 Hz, H-20), 6.97 (s, 2H, H-11, H-11), 6.88 (t,
J = 6.5 Hz, 1H, H-4), 6.68 (d, J = 9.3 Hz, 1H, H-2), 2.46 (s,
6H, H-10, H-15), 1.85-1.33 (m, 20H, CH2 of PCy3), 1.28 (d,
J = 6.7 Hz, 3H), 1.15 (m, 10H). 13C NMR (75.41 MHz,
C6D6, 25 °C) 290.6 (s, JPC = 7.8 Hz, C-16), 162.2 (s, C-
7),158.7 (s, C-1), 150.3 (s, C-8), 142.5 (s, C-24), 140.0 (s, C-
19), 139.2 (s, C-18), 138.7 (d, JCH = 175 Hz, C-17), 136.4 (s,
C-25), 133. 0 (s, C-9), 131.2 (d, C-3), 130.2 (s, C-11), 129.7
(d, C-5), 129.3 (d, JCH = 160 Hz, C-23), 129.1 (d, C-22),
128.4 (d, C-21), 128,0 (d, C-28), 126.2 (d, C-26, C-30),
120.9 (d, C-4), 118.2 (s, C-6), 118.0 (d, JCH = 155 Hz, C-20),
33.7 (CH), 30.2, 30.1, 28.6, 28.3, 21.9 (CH2 of PCy3), 16.80
(q, JCH = 124.9 Hz, C-10, C-16). 31P NMR (121,40 MHz,
C6D6, 25 °C, ref. to H3PO4) = 39.60 (s). Anal. Calcd for
C48H56BrClNOPRu; C, 63.33, H, 6.20, N, 1.54. Found: C,
63.97, H, 6.31, N, 1.70.
Catalyst 4a: dark brown solid(78%): 1H NMR (299.89 MHz,
C6D6, 25 °C): 8.28 (d, J = 2.7Hz, 1H), 7.42 (d, J = 7.2 Hz,
1H), 7.23 (t, J = 7.0 Hz, 1H),7.06 (m, 3H), 6.74 (d, J = 6.7
Hz, 1H), 2.83 (t, J = 3 Hz, Ru=C=CHt-Bu), 1.78-1.50 (m,
23H), 1.26-1.15 (m, 10H), 1.08 (s, 9H, t-Bu); 13C NMR
(75.41 Hz, C6D6, 25 °C): 330.9 (t, JPC = 13.6 Hz,
Ru=C=CHButt), 162.2, 158.4, 130.3, 106.0 (t, JPC = 5.3 Hz,
Ru = C = CHButt), 35. 1 (vt, J = 9 Hz, C1 of C6H11), 26.6
[s, C(CH3)3], 21.2 (s, C3,5 of C6H11), 19.9 [s, C(CH3)3], 16.5;
31P{1H} NMR (C6D6, 25 °C): 47.443 (s). Anal. Calc for
C39H56BrClNOPRu; C, 58.39, H, 7.04, N, 1.75. Found: C,
58.43, H, 7.20, N, 1.89.
Catalyst 4b: brown solid (70%): 1H NMR (299.89 MHz,
C6D6, 25 °C): 8.30 (d, J = 2.9 Hz, 1H), 7.6 (dd, J = 9, 2.3
Hz, 1H), 7.37 (d, J = 5 Hz, 1H), 7.13 (s, 2H), 6.99 (d, J = 9.8
Hz 1H), 3.06 (t, J = 4 Hz, Ru=C=CHt-Bu), 2.50 (q, J = 12
Hz, 3H), 2.38 (s, 3H), 1.88-1.75 (br s, 20H), 1.60 (d, J = 12.5
Hz, 3H), 1.34-25 (m, 10H), 1.07 (s, 9H, t-Bu); 13C NMR
(75.41 Hz, C6D6, 25 °C): 333.20 (t, JPC = 13.4 Hz,
Ru=C=CHt-Bu), 162.02, 157.32, 138.39, 127. 91, 118.16,
111.7 (t, JPC = 5 Hz, Ru=C=CHt-Bu), 36.20 (vt, J = 8.8 Hz,
C1 of C6H11), 31.30 (s, C(CH3)3, 28.25 (s, C3,5 of C6H11),
23.82 [s, C(CH3)3], 17.48; 31P{1H} NMR (C6D6, 25 °C):
45.1 (s). Anal. Calcd for C39H55BrClN2O3Pru; C, 55.29, H,
6.54, N, 3.31. Found: C, 55.54, H, 7.13, N, 3.60.
Catalyst 3a: brown solid (81%): 1H NMR (299.89 MHz,
C6D6, 25 °C): 8.20 (d, J = 5.2 Hz, 1H), 7.38 (d, J = 7.0 Hz,
1H), 7.30 (t, J = 7.2 Hz, 1H), 7.22-7.14, 6.99-6.94, 6.89-6.79
(each m, 5H, Ph), 7.13 (s, 2H), 7.06 (t, J = 7 Hz, 1H), 4.36
(t, J = 4.2 Hz, Ru=C=CHPh), 2.14 (s, 3H), 1.61-1.31 (m,
20H), 1.27 (d, J = 6 Hz, 3H), 1.19 (m, 10H); 13C NMR
(75.41 Hz, C6D6, 25 °C): 343.6 (d, JPC = 11.5 Hz,
Ru=C=CHPh), 161.25, 154.32, 138.36, 128.49, 118.21,
108.45 (t, JPC = 5 Hz, Ru=C=CHPh), 31.5 (vt, J = 8.5 Hz, C1
of C6H11), 26.16 (s, C3,5 of C6H11), 16.76; 31P{1H} NMR
(C6D6, 25 °C): 51.8 Hz (s). Anal. Calcd for
(16) (a) Slugovc, C.; Mereiter, K.; Zobetz, E.; Schmid, R.;
Kirchner, K. Organometallics 1999, 15, 5275. (b) Amos, R.
A.; Katzenellenbogen, J. A. J. Org. Chem. 1978, 43, 560.
(c) Mitsudo, T.; Hori, Y.; Yamakawa, Y.; Watanabe, Y. J.
Org. Chem. 1987, 52, 2230.
(17) Kabouche, A.; Kabouche, Z.; Bruneau, C.; Dixneuf, P. H. J.
Chem. Res. (S) 1999, 249.
(18) De Clercq, B.; Verpoort, F. Adv. Synth. Cat. 2002, accepted
for publication.
C41H52BrClNOPRu; C, 59.89, H, 6.37, N, 1.70. Found: C,
59.93, H, 6.42, N, 1.79.
Catalyst 3b: dark brown solid (80%): 1H NMR (299.89
MHz, C6D6, 25 °C): 8.24 (d, J = 2.5 Hz, 1H), 8.08 (dd,
J = 9 Hz, 2.4 Hz, 1H), 7.94 (d, J = 5.6 Hz, 1H), 7.56 (t,
J = 7.5 Hz, 1H), 7.29 (d, J = 9.8 Hz, 1H), 7.16 (s, 2H), 7.13-
7.07 (o-H), 7.02-6.96 (p-H), 6.89-6.80 (m-H) (each m, 5H,
Ph), 4.25 (t, J = 5 Hz, Ru=C=CHPh), 2.44 (q, J = 11 Hz,
3H), 2.34 (s, 3H), 1.70-1.63 (br s, 20H, C6H11), 1.54 (d,
J = 12 Hz, 3H), 1.36-1.08 (br s, 20H); 13C NMR (75.41 Hz,
C6D6, 25 °C): 340.3 (d, JPC = 10 Hz, Ru=C=CHPh), 165.3,
(19) (a) Philippot, K.; Devanne, D.; Dixneuf, P. H. J. Chem. Soc.,
Chem. Commun. 1990, 1199. (b) Kita, Y.; Maeda, H.;
Omori, K.; Okuno, T.; Tamura, Y. Synlett 1993, 273.
Synlett 2002, No. 6, 935–941 ISSN 0936-5214 © Thieme Stuttgart · New York