-
1
-
-
33845552545
-
-
Sakurai, H.; Nakadaira, Y.; Hosomi, A.; Eriyama, Y.; Kabuto, C. J. Am. Chem. Soc. 1983, 105, 3359. Gleiter, R.; Schafer, W.; Sakurai, H. J. Am. Chem. Soc. 1983,105, 3046. Iwahara, T.; West, R. J. Chem. Soc., Chem. Commun. 1988, 954. Ishikawa, M.; Hatano, T.; Hasegawa, Y.; Horio, T.; Funai, A.; Miyai, A; Ishita, T.; Tsukihara, T.; Yamanaka, T.; Koike, T.; Shioya, J. Organometallics 1992, 11, 1604. Sakurai, H.; Tominaga, K; Watanabe, K.; Kumada, M. Tetrahedron Lett. 1966, 45, 5493.
-
(1983)
J. Am. Chem. Soc.
, vol.105
, pp. 3359
-
-
Sakurai, H.1
Nakadaira, Y.2
Hosomi, A.3
Eriyama, Y.4
Kabuto, C.5
-
2
-
-
33845552545
-
-
Sakurai, H.; Nakadaira, Y.; Hosomi, A.; Eriyama, Y.; Kabuto, C. J. Am. Chem. Soc. 1983, 105, 3359. Gleiter, R.; Schafer, W.; Sakurai, H. J. Am. Chem. Soc. 1983,105, 3046. Iwahara, T.; West, R. J. Chem. Soc., Chem. Commun. 1988, 954. Ishikawa, M.; Hatano, T.; Hasegawa, Y.; Horio, T.; Funai, A.; Miyai, A; Ishita, T.; Tsukihara, T.; Yamanaka, T.; Koike, T.; Shioya, J. Organometallics 1992, 11, 1604. Sakurai, H.; Tominaga, K; Watanabe, K.; Kumada, M. Tetrahedron Lett. 1966, 45, 5493.
-
(1983)
J. Am. Chem. Soc.
, vol.105
, pp. 3046
-
-
Gleiter, R.1
Schafer, W.2
Sakurai, H.3
-
3
-
-
37049081160
-
-
Sakurai, H.; Nakadaira, Y.; Hosomi, A.; Eriyama, Y.; Kabuto, C. J. Am. Chem. Soc. 1983, 105, 3359. Gleiter, R.; Schafer, W.; Sakurai, H. J. Am. Chem. Soc. 1983,105, 3046. Iwahara, T.; West, R. J. Chem. Soc., Chem. Commun. 1988, 954. Ishikawa, M.; Hatano, T.; Hasegawa, Y.; Horio, T.; Funai, A.; Miyai, A; Ishita, T.; Tsukihara, T.; Yamanaka, T.; Koike, T.; Shioya, J. Organometallics 1992, 11, 1604. Sakurai, H.; Tominaga, K; Watanabe, K.; Kumada, M. Tetrahedron Lett. 1966, 45, 5493.
-
(1988)
J. Chem. Soc., Chem. Commun.
, pp. 954
-
-
Iwahara, T.1
West, R.2
-
4
-
-
20944447964
-
-
Sakurai, H.; Nakadaira, Y.; Hosomi, A.; Eriyama, Y.; Kabuto, C. J. Am. Chem. Soc. 1983, 105, 3359. Gleiter, R.; Schafer, W.; Sakurai, H. J. Am. Chem. Soc. 1983,105, 3046. Iwahara, T.; West, R. J. Chem. Soc., Chem. Commun. 1988, 954. Ishikawa, M.; Hatano, T.; Hasegawa, Y.; Horio, T.; Funai, A.; Miyai, A; Ishita, T.; Tsukihara, T.; Yamanaka, T.; Koike, T.; Shioya, J. Organometallics 1992, 11, 1604. Sakurai, H.; Tominaga, K; Watanabe, K.; Kumada, M. Tetrahedron Lett. 1966, 45, 5493.
-
(1992)
Organometallics
, vol.11
, pp. 1604
-
-
Ishikawa, M.1
Hatano, T.2
Hasegawa, Y.3
Horio, T.4
Funai, A.5
Miyai, A.6
Ishita, T.7
Tsukihara, T.8
Yamanaka, T.9
Koike, T.10
Shioya, J.11
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5
-
-
0041505406
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-
Sakurai, H.; Nakadaira, Y.; Hosomi, A.; Eriyama, Y.; Kabuto, C. J. Am. Chem. Soc. 1983, 105, 3359. Gleiter, R.; Schafer, W.; Sakurai, H. J. Am. Chem. Soc. 1983,105, 3046. Iwahara, T.; West, R. J. Chem. Soc., Chem. Commun. 1988, 954. Ishikawa, M.; Hatano, T.; Hasegawa, Y.; Horio, T.; Funai, A.; Miyai, A; Ishita, T.; Tsukihara, T.; Yamanaka, T.; Koike, T.; Shioya, J. Organometallics 1992, 11, 1604. Sakurai, H.; Tominaga, K; Watanabe, K.; Kumada, M. Tetrahedron Lett. 1966, 45, 5493.
-
(1966)
Tetrahedron Lett.
, vol.45
, pp. 5493
-
-
Sakurai, H.1
Tominaga, K.2
Watanabe, K.3
Kumada, M.4
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8
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15444358922
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note
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1H NMR spectroscopy, we have found that 2 is more labile than 1 under the isomerization conditions. Further-more, at the latter stages of the isomerization, the rate of loss of 2 becomes competitive with the rate of isomerization of 1 to 2. Consequently, we feel that the inability to detect trace amounts of 1 in the attempted isomerization of 2 to 1 provides strong (albeit negative) evidence that 2 is thermodynamically more stable than 1 within the limits described in the text.
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9
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0003627947
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Cope, A. C.; Howell, C. F.; Bowers, J.; Lord, R. C.; Whitesides, G. M. J. Am. Chem. Soc. 1967, 89, 4024.
-
(1967)
J. Am. Chem. Soc.
, vol.89
, pp. 4024
-
-
Cope, A.C.1
Howell, C.F.2
Bowers, J.3
Lord, R.C.4
Whitesides, G.M.5
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14
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15444355116
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note
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11,12 In all cases, optimal geometries were determined without the use of additional symmetrization of the Hamiltonian (NOSYMTRY option). The absence of imaginary normal-mode frequencies confirmed that the structures correspond to local energy minima.
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15
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0003422019
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Wavefunction, Inc., Irvine, CA
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Spartan version 5.0, Wavefunction, Inc., Irvine, CA 1997.
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(1997)
Spartan Version 5.0
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17
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15444348170
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note
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We note that minimization with the PM3 Hamiltonian appears to provide the closest qualitative resemblance to the X-ray structures of 1 and 2 in terms of bond lengths and angles.
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18
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0001515436
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For examples, see: Sonnet, P. E. Tetrahedron 1980, 36, 557.
-
(1980)
Tetrahedron
, vol.36
, pp. 557
-
-
Sonnet, P.E.1
-
19
-
-
0001593217
-
-
Whitesides, G. M.; Goe, G. L.; Cope, A. C. J. Am. Chem. Soc. 1967, 89, 7136.
-
(1967)
J. Am. Chem. Soc.
, vol.89
, pp. 7136
-
-
Whitesides, G.M.1
Goe, G.L.2
Cope, A.C.3
-
20
-
-
0003627945
-
-
Whitesides, G. M.; Goe, G. L.; Cope, A. C. J. Am. Chem. Soc. 1969, 91, 2608.
-
(1969)
J. Am. Chem. Soc.
, vol.91
, pp. 2608
-
-
Whitesides, G.M.1
Goe, G.L.2
Cope, A.C.3
-
21
-
-
0000769710
-
-
Boeckh, D.; Huisgen, R.; Nöth, A. J. Am. Chem. Soc. 1987, 109, 1248.
-
(1987)
J. Am. Chem. Soc.
, vol.109
, pp. 1248
-
-
Boeckh, D.1
Huisgen, R.2
Nöth, A.3
-
22
-
-
0346940743
-
-
Shimitzu, T.; Iwata, K.; Kamigata, N.; Ikuta, S. J. Chem. Res., Synop. 1994, 436.
-
(1994)
J. Chem. Res., Synop.
, pp. 436
-
-
Shimitzu, T.1
Iwata, K.2
Kamigata, N.3
Ikuta, S.4
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