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(a) Jacobsen, E. N.; Marko, I.; Mungall, W. S.; Schröder, G.; Sharpless, K. B. J. Am. Chem. Soc. 1995, 34, 1059.
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Jacobsen, E.N.1
Marko, I.2
Mungall, W.S.3
Schröder, G.4
Sharpless, K.B.5
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(b) Review: Kolb, H. C.; VanNieuwenhze, M. S.; Sharpless, K. B. Chem. Rev. 1994, 94, 3-2547.
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Kolb, H.C.1
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0029872834
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Enzymatic desymmetrization of 2,3-prolected meso-butane-1,2,3,4-tetrol derivatives
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For alternative, indirect, and noncatalytic methods, see for example: (a) Enzymatic desymmetrization of 2,3-prolected meso-butane-1,2,3,4-tetrol derivatives: Schoffers, E.; Golebiowski, A.; Johnson, C. R. Tetrahedron 1996, 52, 3769. (b) Enantioselective hydroxyallylation of aldehydes: Roush, W. R.; Grover, P. T.; Lin, X. Tetrahedron Lett. 1990, 31, 7563-7566. (c) Asymmetric epoxidation/Payne-rearrangement/epoxide-opening: i. Ko, S. Y.; Lee, A. W. M.; Masamune, S.; Reed, L. A., III; Sharpless, K. B.; Walker, F. J. Tetrahedron 1990, 46, 245-264. (d) Enantioselective enzymatic hydrolysis of a racemic trans-epoxide: Weijers, C. A. G. M. Tetrahedron: Asymmetry 1997, 8, 639-647.
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Tetrahedron
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Schoffers, E.1
Golebiowski, A.2
Johnson, C.R.3
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5
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0025687659
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Enantioselective hydroxyallylation of aldehydes
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For alternative, indirect, and noncatalytic methods, see for example: (a) Enzymatic desymmetrization of 2,3-prolected meso-butane-1,2,3,4-tetrol derivatives: Schoffers, E.; Golebiowski, A.; Johnson, C. R. Tetrahedron 1996, 52, 3769. (b) Enantioselective hydroxyallylation of aldehydes: Roush, W. R.; Grover, P. T.; Lin, X. Tetrahedron Lett. 1990, 31, 7563-7566. (c) Asymmetric epoxidation/Payne-rearrangement/epoxide-opening: i. Ko, S. Y.; Lee, A. W. M.; Masamune, S.; Reed, L. A., III; Sharpless, K. B.; Walker, F. J. Tetrahedron 1990, 46, 245-264. (d) Enantioselective enzymatic hydrolysis of a racemic trans-epoxide: Weijers, C. A. G. M. Tetrahedron: Asymmetry 1997, 8, 639-647.
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(1990)
Tetrahedron Lett.
, vol.31
, pp. 7563-7566
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Roush, W.R.1
Grover, P.T.2
Lin, X.3
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6
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0011054904
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Asymmetric epoxidation/Payne-rearrangement/epoxide-opening: i
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For alternative, indirect, and noncatalytic methods, see for example: (a) Enzymatic desymmetrization of 2,3-prolected meso-butane-1,2,3,4-tetrol derivatives: Schoffers, E.; Golebiowski, A.; Johnson, C. R. Tetrahedron 1996, 52, 3769. (b) Enantioselective hydroxyallylation of aldehydes: Roush, W. R.; Grover, P. T.; Lin, X. Tetrahedron Lett. 1990, 31, 7563-7566. (c) Asymmetric epoxidation/Payne-rearrangement/epoxide-opening: i. Ko, S. Y.; Lee, A. W. M.; Masamune, S.; Reed, L. A., III; Sharpless, K. B.; Walker, F. J. Tetrahedron 1990, 46, 245-264. (d) Enantioselective enzymatic hydrolysis of a racemic trans-epoxide: Weijers, C. A. G. M. Tetrahedron: Asymmetry 1997, 8, 639-647.
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(1990)
Tetrahedron
, vol.46
, pp. 245-264
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Ko, S.Y.1
Lee, A.W.M.2
Masamune, S.3
Reed L.A. III4
Sharpless, K.B.5
Walker, F.J.6
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7
-
-
0031579475
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Enantioselective enzymatic hydrolysis of a racemic trans-epoxide
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For alternative, indirect, and noncatalytic methods, see for example: (a) Enzymatic desymmetrization of 2,3-prolected meso-butane-1,2,3,4-tetrol derivatives: Schoffers, E.; Golebiowski, A.; Johnson, C. R. Tetrahedron 1996, 52, 3769. (b) Enantioselective hydroxyallylation of aldehydes: Roush, W. R.; Grover, P. T.; Lin, X. Tetrahedron Lett. 1990, 31, 7563-7566. (c) Asymmetric epoxidation/Payne-rearrangement/epoxide-opening: i. Ko, S. Y.; Lee, A. W. M.; Masamune, S.; Reed, L. A., III; Sharpless, K. B.; Walker, F. J. Tetrahedron 1990, 46, 245-264. (d) Enantioselective enzymatic hydrolysis of a racemic trans-epoxide: Weijers, C. A. G. M. Tetrahedron: Asymmetry 1997, 8, 639-647.
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(1997)
Tetrahedron: Asymmetry
, vol.8
, pp. 639-647
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Weijers, C.A.G.M.1
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Mukaiyama, T.; Shiina, I.; Uchiro, H.; Kobayashi, S. Bull. Chem. Soc. Jpn. 1994, 67, 1708-1716.
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Mukaiyama, T.1
Shiina, I.2
Uchiro, H.3
Kobayashi, S.4
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9
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2642642035
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For excellent reviews on aldolases and the catalytic asymmetric aldol reaction in general, see: (a) Gijsen, H. J. M.; Qiao, L.; Fitz, W.; Wong, C.-H. Chem. Rev. 1996, 96, 443-473. (b) Machajewski, T. D.; Wong, C.-H. Angew. Chem., Int. Ed. 2000, 39, 1352-1374.
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Gijsen, H.J.M.1
Qiao, L.2
Fitz, W.3
Wong, C.-H.4
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10
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0034678591
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For excellent reviews on aldolases and the catalytic asymmetric aldol reaction in general, see: (a) Gijsen, H. J. M.; Qiao, L.; Fitz, W.; Wong, C.- H. Chem. Rev. 1996, 96, 443-473. (b) Machajewski, T. D.; Wong, C.-H. Angew. Chem., Int. Ed. 2000, 39, 1352-1374.
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Angew. Chem., Int. Ed.
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Machajewski, T.D.1
Wong, C.-H.2
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(a) List, B.; Shabat, D. Barbas, C. F., III; Lerner, R. A. Chem. Eur. J. 1998, 881-885.
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Chem. Eur. J.
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List, B.1
Shabat, D.2
Barbas C.F. III3
Lerner, R.A.4
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12
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0032054562
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(b) Hoffmann, T.; Zhong, G.; List, B.; Shabat, D.; Anderson, J.; Gramatikova, S.; Lerner, R. A.; Barbas, C. F., III. J. Am. Chem. Soc. 1998, 120, 2768-2779.
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Hoffmann, T.1
Zhong, G.2
List, B.3
Shabat, D.4
Anderson, J.5
Gramatikova, S.6
Lerner, R.A.7
Barbas C.F. III8
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List, B.; Lerner, R. A.; Barbas, C. F., III. J. Am. Chem. Soc. 2000, 122, 2395-2396.
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List, B.1
Lerner, R.A.2
Barbas C.F. III3
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14
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84989500123
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Diastereoselectivities and enantioselectivities were determined by comparison with the syn-enantiomers obtained from the aldehydes via Horner-Wadsworth-Emmons-reaction followed by Sharpless asymmetric dihydroxylations using either AD-mix-α or AD-mix-β (Walsh, P. J.; Sharpless, K. B. Synlett 1993, 605-606). The proline catalyzed reactions were performed with both D- and L-proline so that all four stereoisomers were available. Finally, conditions for the separation of all four stereoisomers were established by using chiral-phase HPLC techniques.
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(1993)
Synlett
, pp. 605-606
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Walsh, P.J.1
Sharpless, K.B.2
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15
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0342300284
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note
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Benzaldehyde gave similar results (dr = 1.3:1, ee = 80%).
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17
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0001589149
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Lopez Aparicio, F. J.; Gomez Guillen, M.; Izquierdo Cubero, I. Ann. Quim. 1976, 72, 938-945.
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Gomez Guillen, M.2
Izquierdo Cubero, I.3
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18
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0001604129
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conjugation
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Regio- and presumed (E)-slereoselectivity of the enamine formation may result from (a) conjugation (Lin, J.-F.; Wu, C.-C.; Lien, M.-H. J. Phys. Chem. 1995, 99, 16903-16908) and (b) minimization of 1,3-allylic strain (Hoffmann, R. W. Chem. Res. 1989, 89, 1841-1860). However, the enamine geometry may not necessarily be reflected in product diastereoselectivity, as in the case of kinetically controlled aldol reactions of preformed enolates; related transition states involving a (Z)-enamine can be constructed.
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J. Phys. Chem.
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Lin, J.-F.1
Wu, C.-C.2
Lien, M.-H.3
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19
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33645897192
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minimization of 1,3-allylic strain
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Regio- and presumed (E)-slereoselectivity of the enamine formation may result from (a) conjugation (Lin, J.-F.; Wu, C.-C.; Lien, M.-H. J. Phys. Chem. 1995, 99, 16903-16908) and (b) minimization of 1,3-allylic strain (Hoffmann, R. W. Chem. Res. 1989, 89, 1841-1860). However, the enamine geometry may not necessarily be reflected in product diastereoselectivity, as in the case of kinetically controlled aldol reactions of preformed enolates; related transition states involving a (Z)-enamine can be constructed.
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(1989)
Chem. Res.
, vol.89
, pp. 1841-1860
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Hoffmann, R.W.1
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Corey, E. J.; Helal, C. J. Angew. Chem., Int. Ed. 1998, 37, 1986-2012.
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Corey, E.J.1
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