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(i) Cardillo, G.; Orena, M.; Sandri, S.; Tomasini, C. Tetrahedron 1987, 43, 2505-2512,
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(l) Di Giovanni, M. C.; Misiti, D.; Zappia, G.; Delle Monache, G. Tetrahedron 1993, 49, 11321-11328.
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Rassu, G.; Zanardi, F.; Cornia, M.; Casiraghi, G. J. Chem. Soc., Perkin Trans. 1 1994, 2431-2437.
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22
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0344965002
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note
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No reaction was observed starting from both (R)-3-benzyloxycarbonyl-2,2-dimethyl-4-(1-propenyl)-1,3-oxazolidine and (E,R)-3-benzyloxycarbonyl-2,2-dimethyl-4-(2-ethoxycarbonylethenyl)-1,3- oxazolidine. This result was surprising, in comparison with those reported for analogous systems (see Ref. 2e and h), although an explanation seems rather difficult to find.
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23
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0028113498
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2,3 3.5 Hz); whereas the (S)-configuration for the stereogenic center in the side chain was tentatively assigned from mechanistic considerations, by assuming an anti-addition mechanism to the Z-double bond. (matrix presented) For recent references concerning 4-exo closure leading to oxetanes, see: (a) Galatsis, P.; Millan, S. D.; Nechala, P.; Ferguson, G. J. Org. Chem. 1994, 59, 6643-6651. (b) Barks, J. M.; Knight, D. W. Tetrahedron Lett. 1996, 35, 7259-7262. (c) Jung, M. E.; Nichols, C. J. Tetrahedron Lett. 1996, 36, 7667-7670. (d) Galatsis, P.; Millan, S. D.; Ferguson, G. J. Org. Chem. 1997, 62, 5048-5056.
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J. Org. Chem.
, vol.59
, pp. 6643-6651
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Galatsis, P.1
Millan, S.D.2
Nechala, P.3
Ferguson, G.4
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24
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0027978883
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2,3 3.5 Hz); whereas the (S)-configuration for the stereogenic center in the side chain was tentatively assigned from mechanistic considerations, by assuming an anti-addition mechanism to the Z-double bond. (matrix presented) For recent references concerning 4-exo closure leading to oxetanes, see: (a) Galatsis, P.; Millan, S. D.; Nechala, P.; Ferguson, G. J. Org. Chem. 1994, 59, 6643-6651. (b) Barks, J. M.; Knight, D. W. Tetrahedron Lett. 1996, 35, 7259-7262. (c) Jung, M. E.; Nichols, C. J. Tetrahedron Lett. 1996, 36, 7667-7670. (d) Galatsis, P.; Millan, S. D.; Ferguson, G. J. Org. Chem. 1997, 62, 5048-5056.
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(1996)
Tetrahedron Lett.
, vol.35
, pp. 7259-7262
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Barks, J.M.1
Knight, D.W.2
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25
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0030597162
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2,3 3.5 Hz); whereas the (S)-configuration for the stereogenic center in the side chain was tentatively assigned from mechanistic considerations, by assuming an anti-addition mechanism to the Z-double bond. (matrix presented) For recent references concerning 4-exo closure leading to oxetanes, see: (a) Galatsis, P.; Millan, S. D.; Nechala, P.; Ferguson, G. J. Org. Chem. 1994, 59, 6643-6651. (b) Barks, J. M.; Knight, D. W. Tetrahedron Lett. 1996, 35, 7259-7262. (c) Jung, M. E.; Nichols, C. J. Tetrahedron Lett. 1996, 36, 7667-7670. (d) Galatsis, P.; Millan, S. D.; Ferguson, G. J. Org. Chem. 1997, 62, 5048-5056.
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(1996)
Tetrahedron Lett.
, vol.36
, pp. 7667-7670
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Jung, M.E.1
Nichols, C.J.2
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26
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0030791888
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2,3 3.5 Hz); whereas the (S)-configuration for the stereogenic center in the side chain was tentatively assigned from mechanistic considerations, by assuming an anti-addition mechanism to the Z-double bond. (matrix presented) For recent references concerning 4-exo closure leading to oxetanes, see: (a) Galatsis, P.; Millan, S. D.; Nechala, P.; Ferguson, G. J. Org. Chem. 1994, 59, 6643-6651. (b) Barks, J. M.; Knight, D. W. Tetrahedron Lett. 1996, 35, 7259-7262. (c) Jung, M. E.; Nichols, C. J. Tetrahedron Lett. 1996, 36, 7667-7670. (d) Galatsis, P.; Millan, S. D.; Ferguson, G. J. Org. Chem. 1997, 62, 5048-5056.
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(1997)
J. Org. Chem.
, vol.62
, pp. 5048-5056
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Galatsis, P.1
Millan, S.D.2
Ferguson, G.3
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27
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84986437005
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Macromodel, version 5.5. For references, see: (a) Mahamadi, F.; Richards, N. G. J.; Guida, W. C.; Liskamp, R.; Lipton, M.; Caufield, C.; Chang, G.; Hendrickson, T.; Still, W. C. J. Comput. Chem. 1990. 11, 440-447. (b) Weiner, S. J.; Kollman, P. A.; Case, D. A.; Singh, U. C.; Ghio, C.; Alagona, G.; Profeta, S.; Weiner, P. J. Am. Chem. Soc. 1984, 106, 765-784. (c) Goodman, J. M.; Still, W. C. J. Comput. Chem. 1991, 12, 1110-1114.
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Mahamadi, F.1
Richards, N.G.J.2
Guida, W.C.3
Liskamp, R.4
Lipton, M.5
Caufield, C.6
Chang, G.7
Hendrickson, T.8
Still, W.C.9
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28
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0021757436
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Macromodel, version 5.5. For references, see: (a) Mahamadi, F.; Richards, N. G. J.; Guida, W. C.; Liskamp, R.; Lipton, M.; Caufield, C.; Chang, G.; Hendrickson, T.; Still, W. C. J. Comput. Chem. 1990. 11, 440-447. (b) Weiner, S. J.; Kollman, P. A.; Case, D. A.; Singh, U. C.; Ghio, C.; Alagona, G.; Profeta, S.; Weiner, P. J. Am. Chem. Soc. 1984, 106, 765-784. (c) Goodman, J. M.; Still, W. C. J. Comput. Chem. 1991, 12, 1110-1114.
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Weiner, S.J.1
Kollman, P.A.2
Case, D.A.3
Singh, U.C.4
Ghio, C.5
Alagona, G.6
Profeta, S.7
Weiner, P.8
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29
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84986469504
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Macromodel, version 5.5. For references, see: (a) Mahamadi, F.; Richards, N. G. J.; Guida, W. C.; Liskamp, R.; Lipton, M.; Caufield, C.; Chang, G.; Hendrickson, T.; Still, W. C. J. Comput. Chem. 1990. 11, 440-447. (b) Weiner, S. J.; Kollman, P. A.; Case, D. A.; Singh, U. C.; Ghio, C.; Alagona, G.; Profeta, S.; Weiner, P. J. Am. Chem. Soc. 1984, 106, 765-784. (c) Goodman, J. M.; Still, W. C. J. Comput. Chem. 1991, 12, 1110-1114.
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Goodman, J.M.1
Still, W.C.2
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0344361923
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Baldwin, J. E. J. Chem. Soc., Chem. Commun. 1976, 734-736; Baldwin J. E.; Cutting, J.; Dupont, W.; Kruse, L.; Silberman, L.; Thomas, R. C. Ibid. 1976, 736-738; Baldwin, J. E. Ibid. 1976, 738-741.
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Baldwin, J.E.1
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15844379072
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Baldwin, J. E. J. Chem. Soc., Chem. Commun. 1976, 734-736; Baldwin J. E.; Cutting, J.; Dupont, W.; Kruse, L.; Silberman, L.; Thomas, R. C. Ibid. 1976, 736-738; Baldwin, J. E. Ibid. 1976, 738-741.
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, pp. 736-738
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Baldwin, J.E.1
Cutting, J.2
Dupont, W.3
Kruse, L.4
Silberman, L.5
Thomas, R.C.6
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32
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37049113016
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Baldwin, J. E. J. Chem. Soc., Chem. Commun. 1976, 734-736; Baldwin J. E.; Cutting, J.; Dupont, W.; Kruse, L.; Silberman, L.; Thomas, R. C. Ibid. 1976, 736-738; Baldwin, J. E. Ibid. 1976, 738-741.
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Baldwin, J.E.1
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33
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0030027989
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(a) Watanabe, M.; Okada, H.; Teshima, T.; Kakehi, A. Tetrahedron 1996, 52, 2827-2838.
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Watanabe, M.1
Okada, H.2
Teshima, T.3
Kakehi, A.4
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35
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0344533972
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available from Hypercube, Gainesville, Florida, USA
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Hyperchem package, release 5.1, available from Hypercube, Gainesville, Florida, USA.
-
Hyperchem Package, Release 5.1
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-
-
36
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0001275598
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(a) Chamberlin, A. R.; Mulholland, R. L.; Kahn, S. D.; Hehre, W J. J. Am. Chem. Soc. 1987,109, 672-677.
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Chamberlin, A.R.1
Mulholland, R.L.2
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Hehre, W.J.4
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38
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0344533970
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note
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-1.
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