-
1
-
-
84891580093
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-
Ojima, I., Ed.; Wiley-VCH: New York
-
For recent monographs see: (a) Ojima I., Catalytic Asymmetric Synthesis. 2000;Wiley-VCH, New York, (b) Jacobsen E.N., Pfaltz A., Yamamoto H., Comprehensive Asymmetric Catalysis. 1999;Springer, New York.
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Catalytic Asymmetric Synthesis
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2
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84891580093
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E.N. Jacobsen, A. Pfaltz, & H. Yamamoto. New York: Springer
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For recent monographs see: (a) Ojima I., Catalytic Asymmetric Synthesis. 2000;Wiley-VCH, New York, (b) Jacobsen E.N., Pfaltz A., Yamamoto H., Comprehensive Asymmetric Catalysis. 1999;Springer, New York.
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(1999)
Comprehensive Asymmetric Catalysis
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4
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0025780257
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For an extensive review on the effect of reaction temperature on selectivity see: Buschmann H., Scharf H.-D., Hoffmann N., Esser P. Angew. Chem., Int. Ed. Engl. 30:1991;477.
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(1991)
Angew. Chem., Int. Ed. Engl.
, vol.30
, pp. 477
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Buschmann, H.1
Scharf, H.-D.2
Hoffmann, N.3
Esser, P.4
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5
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-
0001158967
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-
For examples of reversal of selectivity with temperature see: (a) Inoue Y., Yokoyama T., Yamasaki N., Tai A. Nature. 341:1989;225 (b) Inoue Y., Yokoyama T., Yamasaki N., Tai A. J. Am. Chem. Soc. 111:1989;6480 (c) Inoue Y., Yokoyama T., Yamasaki N., Tai A. J. Org. Chem. 57:1992;1332 (d) Inoue Y., Yokoyama T., Yamasaki N., Tai A. J. Org. Chem. 58:1993;1011 (e) Pracejus H., Matje H.S. J. Prakt. Chem. 24:1964;195.
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(1989)
Nature
, vol.341
, pp. 225
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Inoue, Y.1
Yokoyama, T.2
Yamasaki, N.3
Tai, A.4
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6
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33845184415
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-
For examples of reversal of selectivity with temperature see: (a) Inoue Y., Yokoyama T., Yamasaki N., Tai A. Nature. 341:1989;225 (b) Inoue Y., Yokoyama T., Yamasaki N., Tai A. J. Am. Chem. Soc. 111:1989;6480 (c) Inoue Y., Yokoyama T., Yamasaki N., Tai A. J. Org. Chem. 57:1992;1332 (d) Inoue Y., Yokoyama T., Yamasaki N., Tai A. J. Org. Chem. 58:1993;1011 (e) Pracejus H., Matje H.S. J. Prakt. Chem. 24:1964;195.
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(1989)
J. Am. Chem. Soc.
, vol.111
, pp. 6480
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Inoue, Y.1
Yokoyama, T.2
Yamasaki, N.3
Tai, A.4
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7
-
-
0001061376
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-
For examples of reversal of selectivity with temperature see: (a) Inoue Y., Yokoyama T., Yamasaki N., Tai A. Nature. 341:1989;225 (b) Inoue Y., Yokoyama T., Yamasaki N., Tai A. J. Am. Chem. Soc. 111:1989;6480 (c) Inoue Y., Yokoyama T., Yamasaki N., Tai A. J. Org. Chem. 57:1992;1332 (d) Inoue Y., Yokoyama T., Yamasaki N., Tai A. J. Org. Chem. 58:1993;1011 (e) Pracejus H., Matje H.S. J. Prakt. Chem. 24:1964;195.
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(1992)
J. Org. Chem.
, vol.57
, pp. 1332
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Inoue, Y.1
Yokoyama, T.2
Yamasaki, N.3
Tai, A.4
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8
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0000293245
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-
For examples of reversal of selectivity with temperature see: (a) Inoue Y., Yokoyama T., Yamasaki N., Tai A. Nature. 341:1989;225 (b) Inoue Y., Yokoyama T., Yamasaki N., Tai A. J. Am. Chem. Soc. 111:1989;6480 (c) Inoue Y., Yokoyama T., Yamasaki N., Tai A. J. Org. Chem. 57:1992;1332 (d) Inoue Y., Yokoyama T., Yamasaki N., Tai A. J. Org. Chem. 58:1993;1011 (e) Pracejus H., Matje H.S. J. Prakt. Chem. 24:1964;195.
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(1993)
J. Org. Chem.
, vol.58
, pp. 1011
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Inoue, Y.1
Yokoyama, T.2
Yamasaki, N.3
Tai, A.4
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9
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0000475490
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For examples of reversal of selectivity with temperature see: (a) Inoue Y., Yokoyama T., Yamasaki N., Tai A. Nature. 341:1989;225 (b) Inoue Y., Yokoyama T., Yamasaki N., Tai A. J. Am. Chem. Soc. 111:1989;6480 (c) Inoue Y., Yokoyama T., Yamasaki N., Tai A. J. Org. Chem. 57:1992;1332 (d) Inoue Y., Yokoyama T., Yamasaki N., Tai A. J. Org. Chem. 58:1993;1011 (e) Pracejus H., Matje H.S. J. Prakt. Chem. 24:1964;195.
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(1964)
J. Prakt. Chem.
, vol.24
, pp. 195
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Pracejus, H.1
Matje, H.S.2
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15
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0037065709
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-
and references cited therein
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For a recent study see: Sibi M.P., Sausker J.B. J. Am. Chem. Soc. 124:2002;983. and references cited therein.
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(2002)
J. Am. Chem. Soc.
, vol.124
, pp. 983
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Sibi, M.P.1
Sausker, J.B.2
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17
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0011208876
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note
-
Previous work from our laboratory has shown that 30 mol% of the chiral Lewis acid is generally optimal for obtaining high chemical yield and selectivity. Increasing the catalytic loading to one full equivalent in the present work was analogous to prior results and also led to a decrease in enantioselectivity.
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18
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0034327703
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(a) 4,4-Disubstituted oxazolidinones have been occasionally employed in enantioselective transformations. For another example of selectivity reversal by changing the template from oxazolidinone to 4,4-dimethyloxazolidinone see: Kanemasa S., Kanai T. J. Am. Chem. Soc. 122:2000;10710. For the use of 4,4-substituted oxazolidinone in radical reactions see: (b) Murakata M., Tsutsui H., Hoshino O. Org. Lett. 3:2001;299 (c) Sibi M.P., Ji J., Wu J.H., Gurtler S., Porter N.A. J. Am. Chem. Soc. 118:1996;9200 (d) Fhal A.-R., Renaud P. Tetrahedron Lett. 38:1997;2661.
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(2000)
J. Am. Chem. Soc.
, vol.122
, pp. 10710
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Kanemasa, S.1
Kanai, T.2
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19
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0000265051
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-
(a) 4,4-Disubstituted oxazolidinones have been occasionally employed in enantioselective transformations. For another example of selectivity reversal by changing the template from oxazolidinone to 4,4-dimethyloxazolidinone see: Kanemasa S., Kanai T. J. Am. Chem. Soc. 122:2000;10710. For the use of 4,4-substituted oxazolidinone in radical reactions see: (b) Murakata M., Tsutsui H., Hoshino O. Org. Lett. 3:2001;299 (c) Sibi M.P., Ji J., Wu J.H., Gurtler S., Porter N.A. J. Am. Chem. Soc. 118:1996;9200 (d) Fhal A.-R., Renaud P. Tetrahedron Lett. 38:1997;2661.
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(2001)
Org. Lett.
, vol.3
, pp. 299
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Murakata, M.1
Tsutsui, H.2
Hoshino, O.3
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20
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0029804421
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-
(a) 4,4-Disubstituted oxazolidinones have been occasionally employed in enantioselective transformations. For another example of selectivity reversal by changing the template from oxazolidinone to 4,4-dimethyloxazolidinone see: Kanemasa S., Kanai T. J. Am. Chem. Soc. 122:2000;10710. For the use of 4,4-substituted oxazolidinone in radical reactions see: (b) Murakata M., Tsutsui H., Hoshino O. Org. Lett. 3:2001;299 (c) Sibi M.P., Ji J., Wu J.H., Gurtler S., Porter N.A. J. Am. Chem. Soc. 118:1996;9200 (d) Fhal A.-R., Renaud P. Tetrahedron Lett. 38:1997;2661.
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(1996)
J. Am. Chem. Soc.
, vol.118
, pp. 9200
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-
Sibi, M.P.1
Ji, J.2
Wu, J.H.3
Gurtler, S.4
Porter, N.A.5
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21
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0030959442
-
-
(a) 4,4-Disubstituted oxazolidinones have been occasionally employed in enantioselective transformations. For another example of selectivity reversal by changing the template from oxazolidinone to 4,4-dimethyloxazolidinone see: Kanemasa S., Kanai T. J. Am. Chem. Soc. 122:2000;10710. For the use of 4,4-substituted oxazolidinone in radical reactions see: (b) Murakata M., Tsutsui H., Hoshino O. Org. Lett. 3:2001;299 (c) Sibi M.P., Ji J., Wu J.H., Gurtler S., Porter N.A. J. Am. Chem. Soc. 118:1996;9200 (d) Fhal A.-R., Renaud P. Tetrahedron Lett. 38:1997;2661.
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(1997)
Tetrahedron Lett.
, vol.38
, pp. 2661
-
-
Fhal, A.-R.1
Renaud, P.2
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23
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0011163608
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-
note
-
The inversion temperature was derived by plotting ee vs. temperature.
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-
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24
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0011166034
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-
submitted for publication
-
In a full account on conjugate amine additions to enamides, we have explored the effect of solvents in some detail. Dichloromethane was determined to be optimal in these experiments. See: Sibi, M. P.; Liu, M.; Shay, J. J. J. Org. Chem., submitted for publication.
-
J. Org. Chem.
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Sibi, M.P.1
Liu, M.2
Shay, J.J.3
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25
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0011233030
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-
note
-
For the synthesis of this template see Ref. 10b.
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-
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26
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0000646538
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-
New York: Wiley
-
For the synthesis of 4,4-dimethylpyrrollidinone see: (a) Moffett R.B. Organic Syntheses. Coll. Vol. IV:1963;Wiley, New York. p 357 (b) Osby J.O., Ganem B. Tetrahedron Lett. 26:1985;6413.
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(1963)
Organic Syntheses
, vol.COLL. VOL. IV
, pp. 357
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Moffett, R.B.1
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27
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0000908289
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For the synthesis of 4,4-dimethylpyrrollidinone see: (a) Moffett R.B. Organic Syntheses. Coll. Vol. IV:1963;Wiley, New York. p 357 (b) Osby J.O., Ganem B. Tetrahedron Lett. 26:1985;6413.
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(1985)
Tetrahedron Lett.
, vol.26
, pp. 6413
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Osby, J.O.1
Ganem, B.2
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28
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0011238081
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-
note
-
See Section 2 for details.
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-
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31
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0030662445
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-
For examples of reactions proceeding with higher enantioselectivity at higher temperatures see: (a) Lautens M., Rovis T. J. Am. Chem. Soc. 119:1997;11090 (b) Muchow G., Vannoorenberghe Y., Buono G. Tetrahedron Lett. 28:1987;6163 (c) Stone G.B. Tetrahedron: Asymmetry. 5:1994;465 (d) Dubois L., Fiaud J.-C., Kagan H.B. Tetrahedron: Asymmetry. 6:1995;1097 (e) Burns B., King N.P., Tye H., Studley J.R., Gamble M., Wills M. J. Chem. Soc., Perkins Trans. 1. 1998;1027 (f) Brunel J.M., Maffei M., Buono G. Tetrahedron: Asymmetry. 4:1993;2255 (g) Jones G.B., Heaton S.B., Chapman B.J., Guzel M. Tetrahedron: Asymmetry. 8:1997;3625 (h) Sibi M.P., Cook G.R., Liu P. Tetrahedron Lett. 40:1999;2477 (i) Zhang H., Chan K.S. J. Chem. Soc., Perkin Trans. 1. 1999;381 (j) Muzart J., Henin F., Aboulhoda S.J. Tetrahedron: Asymmetry. 8:1997;381 (k) Wiegers A., Scharf H.-D. Tetrahedron: Asymmetry. 8:1996;2303.
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J. Am. Chem. Soc.
, vol.119
, pp. 11090
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Lautens, M.1
Rovis, T.2
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32
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0343994047
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For examples of reactions proceeding with higher enantioselectivity at higher temperatures see: (a) Lautens M., Rovis T. J. Am. Chem. Soc. 119:1997;11090 (b) Muchow G., Vannoorenberghe Y., Buono G. Tetrahedron Lett. 28:1987;6163 (c) Stone G.B. Tetrahedron: Asymmetry. 5:1994;465 (d) Dubois L., Fiaud J.-C., Kagan H.B. Tetrahedron: Asymmetry. 6:1995;1097 (e) Burns B., King N.P., Tye H., Studley J.R., Gamble M., Wills M. J. Chem. Soc., Perkins Trans. 1. 1998;1027 (f) Brunel J.M., Maffei M., Buono G. Tetrahedron: Asymmetry. 4:1993;2255 (g) Jones G.B., Heaton S.B., Chapman B.J., Guzel M. Tetrahedron: Asymmetry. 8:1997;3625 (h) Sibi M.P., Cook G.R., Liu P. Tetrahedron Lett. 40:1999;2477 (i) Zhang H., Chan K.S. J. Chem. Soc., Perkin Trans. 1. 1999;381 (j) Muzart J., Henin F., Aboulhoda S.J. Tetrahedron: Asymmetry. 8:1997;381 (k) Wiegers A., Scharf H.-D. Tetrahedron: Asymmetry. 8:1996;2303.
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Tetrahedron Lett.
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Muchow, G.1
Vannoorenberghe, Y.2
Buono, G.3
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33
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0028220644
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-
For examples of reactions proceeding with higher enantioselectivity at higher temperatures see: (a) Lautens M., Rovis T. J. Am. Chem. Soc. 119:1997;11090 (b) Muchow G., Vannoorenberghe Y., Buono G. Tetrahedron Lett. 28:1987;6163 (c) Stone G.B. Tetrahedron: Asymmetry. 5:1994;465 (d) Dubois L., Fiaud J.-C., Kagan H.B. Tetrahedron: Asymmetry. 6:1995;1097 (e) Burns B., King N.P., Tye H., Studley J.R., Gamble M., Wills M. J. Chem. Soc., Perkins Trans. 1. 1998;1027 (f) Brunel J.M., Maffei M., Buono G. Tetrahedron: Asymmetry. 4:1993;2255 (g) Jones G.B., Heaton S.B., Chapman B.J., Guzel M. Tetrahedron: Asymmetry. 8:1997;3625 (h) Sibi M.P., Cook G.R., Liu P. Tetrahedron Lett. 40:1999;2477 (i) Zhang H., Chan K.S. J. Chem. Soc., Perkin Trans. 1. 1999;381 (j) Muzart J., Henin F., Aboulhoda S.J. Tetrahedron: Asymmetry. 8:1997;381 (k) Wiegers A., Scharf H.-D. Tetrahedron: Asymmetry. 8:1996;2303.
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Tetrahedron: Asymmetry
, vol.5
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Stone, G.B.1
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0029006489
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For examples of reactions proceeding with higher enantioselectivity at higher temperatures see: (a) Lautens M., Rovis T. J. Am. Chem. Soc. 119:1997;11090 (b) Muchow G., Vannoorenberghe Y., Buono G. Tetrahedron Lett. 28:1987;6163 (c) Stone G.B. Tetrahedron: Asymmetry. 5:1994;465 (d) Dubois L., Fiaud J.-C., Kagan H.B. Tetrahedron: Asymmetry. 6:1995;1097 (e) Burns B., King N.P., Tye H., Studley J.R., Gamble M., Wills M. J. Chem. Soc., Perkins Trans. 1. 1998;1027 (f) Brunel J.M., Maffei M., Buono G. Tetrahedron: Asymmetry. 4:1993;2255 (g) Jones G.B., Heaton S.B., Chapman B.J., Guzel M. Tetrahedron: Asymmetry. 8:1997;3625 (h) Sibi M.P., Cook G.R., Liu P. Tetrahedron Lett. 40:1999;2477 (i) Zhang H., Chan K.S. J. Chem. Soc., Perkin Trans. 1. 1999;381 (j) Muzart J., Henin F., Aboulhoda S.J. Tetrahedron: Asymmetry. 8:1997;381 (k) Wiegers A., Scharf H.-D. Tetrahedron: Asymmetry. 8:1996;2303.
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Kagan, H.B.3
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33748621482
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For examples of reactions proceeding with higher enantioselectivity at higher temperatures see: (a) Lautens M., Rovis T. J. Am. Chem. Soc. 119:1997;11090 (b) Muchow G., Vannoorenberghe Y., Buono G. Tetrahedron Lett. 28:1987;6163 (c) Stone G.B. Tetrahedron: Asymmetry. 5:1994;465 (d) Dubois L., Fiaud J.-C., Kagan H.B. Tetrahedron: Asymmetry. 6:1995;1097 (e) Burns B., King N.P., Tye H., Studley J.R., Gamble M., Wills M. J. Chem. Soc., Perkins Trans. 1. 1998;1027 (f) Brunel J.M., Maffei M., Buono G. Tetrahedron: Asymmetry. 4:1993;2255 (g) Jones G.B., Heaton S.B., Chapman B.J., Guzel M. Tetrahedron: Asymmetry. 8:1997;3625 (h) Sibi M.P., Cook G.R., Liu P. Tetrahedron Lett. 40:1999;2477 (i) Zhang H., Chan K.S. J. Chem. Soc., Perkin Trans. 1. 1999;381 (j) Muzart J., Henin F., Aboulhoda S.J. Tetrahedron: Asymmetry. 8:1997;381 (k) Wiegers A., Scharf H.-D. Tetrahedron: Asymmetry. 8:1996;2303.
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Burns, B.1
King, N.P.2
Tye, H.3
Studley, J.R.4
Gamble, M.5
Wills, M.6
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36
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0027425987
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For examples of reactions proceeding with higher enantioselectivity at higher temperatures see: (a) Lautens M., Rovis T. J. Am. Chem. Soc. 119:1997;11090 (b) Muchow G., Vannoorenberghe Y., Buono G. Tetrahedron Lett. 28:1987;6163 (c) Stone G.B. Tetrahedron: Asymmetry. 5:1994;465 (d) Dubois L., Fiaud J.-C., Kagan H.B. Tetrahedron: Asymmetry. 6:1995;1097 (e) Burns B., King N.P., Tye H., Studley J.R., Gamble M., Wills M. J. Chem. Soc., Perkins Trans. 1. 1998;1027 (f) Brunel J.M., Maffei M., Buono G. Tetrahedron: Asymmetry. 4:1993;2255 (g) Jones G.B., Heaton S.B., Chapman B.J., Guzel M. Tetrahedron: Asymmetry. 8:1997;3625 (h) Sibi M.P., Cook G.R., Liu P. Tetrahedron Lett. 40:1999;2477 (i) Zhang H., Chan K.S. J. Chem. Soc., Perkin Trans. 1. 1999;381 (j) Muzart J., Henin F., Aboulhoda S.J. Tetrahedron: Asymmetry. 8:1997;381 (k) Wiegers A., Scharf H.-D. Tetrahedron: Asymmetry. 8:1996;2303.
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Tetrahedron: Asymmetry
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Brunel, J.M.1
Maffei, M.2
Buono, G.3
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0031566713
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For examples of reactions proceeding with higher enantioselectivity at higher temperatures see: (a) Lautens M., Rovis T. J. Am. Chem. Soc. 119:1997;11090 (b) Muchow G., Vannoorenberghe Y., Buono G. Tetrahedron Lett. 28:1987;6163 (c) Stone G.B. Tetrahedron: Asymmetry. 5:1994;465 (d) Dubois L., Fiaud J.-C., Kagan H.B. Tetrahedron: Asymmetry. 6:1995;1097 (e) Burns B., King N.P., Tye H., Studley J.R., Gamble M., Wills M. J. Chem. Soc., Perkins Trans. 1. 1998;1027 (f) Brunel J.M., Maffei M., Buono G. Tetrahedron: Asymmetry. 4:1993;2255 (g) Jones G.B., Heaton S.B., Chapman B.J., Guzel M. Tetrahedron: Asymmetry. 8:1997;3625 (h) Sibi M.P., Cook G.R., Liu P. Tetrahedron Lett. 40:1999;2477 (i) Zhang H., Chan K.S. J. Chem. Soc., Perkin Trans. 1. 1999;381 (j) Muzart J., Henin F., Aboulhoda S.J. Tetrahedron: Asymmetry. 8:1997;381 (k) Wiegers A., Scharf H.-D. Tetrahedron: Asymmetry. 8:1996;2303.
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Jones, G.B.1
Heaton, S.B.2
Chapman, B.J.3
Guzel, M.4
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38
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0033605909
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For examples of reactions proceeding with higher enantioselectivity at higher temperatures see: (a) Lautens M., Rovis T. J. Am. Chem. Soc. 119:1997;11090 (b) Muchow G., Vannoorenberghe Y., Buono G. Tetrahedron Lett. 28:1987;6163 (c) Stone G.B. Tetrahedron: Asymmetry. 5:1994;465 (d) Dubois L., Fiaud J.-C., Kagan H.B. Tetrahedron: Asymmetry. 6:1995;1097 (e) Burns B., King N.P., Tye H., Studley J.R., Gamble M., Wills M. J. Chem. Soc., Perkins Trans. 1. 1998;1027 (f) Brunel J.M., Maffei M., Buono G. Tetrahedron: Asymmetry. 4:1993;2255 (g) Jones G.B., Heaton S.B., Chapman B.J., Guzel M. Tetrahedron: Asymmetry. 8:1997;3625 (h) Sibi M.P., Cook G.R., Liu P. Tetrahedron Lett. 40:1999;2477 (i) Zhang H., Chan K.S. J. Chem. Soc., Perkin Trans. 1. 1999;381 (j) Muzart J., Henin F., Aboulhoda S.J. Tetrahedron: Asymmetry. 8:1997;381 (k) Wiegers A., Scharf H.-D. Tetrahedron: Asymmetry. 8:1996;2303.
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Cook, G.R.2
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0000619082
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For examples of reactions proceeding with higher enantioselectivity at higher temperatures see: (a) Lautens M., Rovis T. J. Am. Chem. Soc. 119:1997;11090 (b) Muchow G., Vannoorenberghe Y., Buono G. Tetrahedron Lett. 28:1987;6163 (c) Stone G.B. Tetrahedron: Asymmetry. 5:1994;465 (d) Dubois L., Fiaud J.-C., Kagan H.B. Tetrahedron: Asymmetry. 6:1995;1097 (e) Burns B., King N.P., Tye H., Studley J.R., Gamble M., Wills M. J. Chem. Soc., Perkins Trans. 1. 1998;1027 (f) Brunel J.M., Maffei M., Buono G. Tetrahedron: Asymmetry. 4:1993;2255 (g) Jones G.B., Heaton S.B., Chapman B.J., Guzel M. Tetrahedron: Asymmetry. 8:1997;3625 (h) Sibi M.P., Cook G.R., Liu P. Tetrahedron Lett. 40:1999;2477 (i) Zhang H., Chan K.S. J. Chem. Soc., Perkin Trans. 1. 1999;381 (j) Muzart J., Henin F., Aboulhoda S.J. Tetrahedron: Asymmetry. 8:1997;381 (k) Wiegers A., Scharf H.-D. Tetrahedron: Asymmetry. 8:1996;2303.
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40
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0342981459
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For examples of reactions proceeding with higher enantioselectivity at higher temperatures see: (a) Lautens M., Rovis T. J. Am. Chem. Soc. 119:1997;11090 (b) Muchow G., Vannoorenberghe Y., Buono G. Tetrahedron Lett. 28:1987;6163 (c) Stone G.B. Tetrahedron: Asymmetry. 5:1994;465 (d) Dubois L., Fiaud J.-C., Kagan H.B. Tetrahedron: Asymmetry. 6:1995;1097 (e) Burns B., King N.P., Tye H., Studley J.R., Gamble M., Wills M. J. Chem. Soc., Perkins Trans. 1. 1998;1027 (f) Brunel J.M., Maffei M., Buono G. Tetrahedron: Asymmetry. 4:1993;2255 (g) Jones G.B., Heaton S.B., Chapman B.J., Guzel M. Tetrahedron: Asymmetry. 8:1997;3625 (h) Sibi M.P., Cook G.R., Liu P. Tetrahedron Lett. 40:1999;2477 (i) Zhang H., Chan K.S. J. Chem. Soc., Perkin Trans. 1. 1999;381 (j) Muzart J., Henin F., Aboulhoda S.J. Tetrahedron: Asymmetry. 8:1997;381 (k) Wiegers A., Scharf H.-D. Tetrahedron: Asymmetry. 8:1996;2303.
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41
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0030221454
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