-
2
-
-
0032546096
-
-
(b) Bringmann, G.; Pabst, T.; Busemann, S.; Peters, K.; Peters, E.-M. Tetrahedron 1998, 54, 1425.
-
(1998)
Tetrahedron
, vol.54
, pp. 1425
-
-
Bringmann, G.1
Pabst, T.2
Busemann, S.3
Peters, K.4
Peters, E.-M.5
-
3
-
-
0033556227
-
-
(c) Bringmann, G.; Pabst, T.; Rycroft, D. S.; Connolly, J. D. Tetrahedron Lett. 1999, 40, 483.
-
(1999)
Tetrahedron Lett.
, vol.40
, pp. 483
-
-
Bringmann, G.1
Pabst, T.2
Rycroft, D.S.3
Connolly, J.D.4
-
5
-
-
0000714999
-
-
and references therein
-
Cass, Q. B.;Tiritan, E.; Matlin, S. A.; Freire, E. C. Phytochemistry 1991, 30, 2655 and references therein.
-
(1991)
Phytochemistry
, vol.30
, pp. 2655
-
-
Cass, Q.B.1
Tiritan, E.2
Matlin, S.A.3
Freire, E.C.4
-
6
-
-
0026690918
-
-
(a) Rosini, C.; Franzini, L.; Raffaelli, A.; Salvadori, P. Synthesis 1992, 503.
-
(1992)
Synthesis
, pp. 503
-
-
Rosini, C.1
Franzini, L.2
Raffaelli, A.3
Salvadori, P.4
-
7
-
-
0000718373
-
-
(b) Pu, L. Chem. Rev. 1998, 98, 2405.
-
(1998)
Chem. Rev.
, vol.98
, pp. 2405
-
-
Pu, L.1
-
9
-
-
0032727557
-
-
(a) Bringmann, G.; Breuning, M.; Walter, R.; Wuzik, A.; Peters, K.; Peters, E.-M. Eur. J. Org. Chem. 1999, 3047.
-
(1999)
Eur. J. Org. Chem.
, pp. 3047
-
-
Bringmann, G.1
Breuning, M.2
Walter, R.3
Wuzik, A.4
Peters, K.5
Peters, E.-M.6
-
10
-
-
0030986896
-
-
(b) Seebach, D.; Jaeschke, G.; Gottwald, K.; Matsuda, K.; Formisano, R.; Chaplin, D. A.; Breuning, M.; Bringmann, G. Tetrahedron 1997, 53, 7539.
-
(1997)
Tetrahedron
, vol.53
, pp. 7539
-
-
Seebach, D.1
Jaeschke, G.2
Gottwald, K.3
Matsuda, K.4
Formisano, R.5
Chaplin, D.A.6
Breuning, M.7
Bringmann, G.8
-
11
-
-
0032821942
-
-
(c) Bringmann, G.; Breuning, M.; Tasler, S.; Endress, H.; Ewers, C. L. J.; Göbel, L.; Peters, K.; Peters, E.-M. Chem. Eur. J. 1999, 5, 3029.
-
(1999)
Chem. Eur. J.
, vol.5
, pp. 3029
-
-
Bringmann, G.1
Breuning, M.2
Tasler, S.3
Endress, H.4
Ewers, C.L.J.5
Göbel, L.6
Peters, K.7
Peters, E.-M.8
-
14
-
-
0032518670
-
-
(a) Bringmann, G.; Holenz, J.; Weirich, R.; Rübenacker, M.; Funke, C.; Boyd, M. R.; Gulakowski, R. J.; François, G. Tetrahedron 1998, 54, 497.
-
(1998)
Tetrahedron
, vol.54
, pp. 497
-
-
Bringmann, G.1
Holenz, J.2
Weirich, R.3
Rübenacker, M.4
Funke, C.5
Boyd, M.R.6
Gulakowski, R.J.7
François, G.8
-
15
-
-
0033534680
-
-
(b) Bringmann, G.; Saeb, W.; Rübenacker, M. Tetrahedron 1999, 55, 423.
-
(1999)
Tetrahedron
, vol.55
, pp. 423
-
-
Bringmann, G.1
Saeb, W.2
Rübenacker, M.3
-
19
-
-
0033618577
-
-
(b) Bringmann, G.; Wuzik, A.; Breuning, M.; Henschel, P.; Peters, K.; Peters, E.-M. Tetrahedron: Asymmetry 1999, 10, 3025.
-
(1999)
Tetrahedron: Asymmetry
, vol.10
, pp. 3025
-
-
Bringmann, G.1
Wuzik, A.2
Breuning, M.3
Henschel, P.4
Peters, K.5
Peters, E.-M.6
-
20
-
-
0028210692
-
-
Bringmann, G.; Hartung, T.; Kröcher, O.; Gulden, K.-P.; Lange, J.; Burzlaff, H. Tetrahedron 1994, 50, 2831.
-
(1994)
Tetrahedron
, vol.50
, pp. 2831
-
-
Bringmann, G.1
Hartung, T.2
Kröcher, O.3
Gulden, K.-P.4
Lange, J.5
Burzlaff, H.6
-
22
-
-
0028936428
-
-
Bringmann, G.; Busse, H.; Dauer, U.; Güssregen, S.; Stahl, M. Tetrahedron 1995, 51, 3149.
-
(1995)
Tetrahedron
, vol.51
, pp. 3149
-
-
Bringmann, G.1
Busse, H.2
Dauer, U.3
Güssregen, S.4
Stahl, M.5
-
23
-
-
0032191821
-
-
Bringmann, G.; Dauer, U.; Kraus, J. Tetrahedron 1998, 54, 12265.
-
(1998)
Tetrahedron
, vol.54
, pp. 12265
-
-
Bringmann, G.1
Dauer, U.2
Kraus, J.3
-
25
-
-
0000849029
-
-
Bringmann, G.; Güssregen, S.; Vitt, D.; Stowasser, R. J. Mol. Model. 1998, 4, 165.
-
(1998)
J. Mol. Model.
, vol.4
, pp. 165
-
-
Bringmann, G.1
Güssregen, S.2
Vitt, D.3
Stowasser, R.4
-
26
-
-
0026637801
-
-
Corey, E. J.; Azimioara, M.; Sarshar, S. Tetrahedron Lett. 1992, 33, 3429.
-
(1992)
Tetrahedron Lett.
, vol.33
, pp. 3429
-
-
Corey, E.J.1
Azimioara, M.2
Sarshar, S.3
-
27
-
-
0032541271
-
-
Corey, E. J.; Helal, C. J. Angew. Chem., Int. Ed. Engl. 1998, 37, 1986.
-
(1998)
Angew. Chem., Int. Ed. Engl.
, vol.37
, pp. 1986
-
-
Corey, E.J.1
Helal, C.J.2
-
29
-
-
0001752772
-
-
Jones, D. K.; Liotta, D. C.; Shinkai, I.; Mathre, D. J. J. Org. Chem. 1993, 58, 799.
-
(1993)
J. Org. Chem.
, vol.58
, pp. 799
-
-
Jones, D.K.1
Liotta, D.C.2
Shinkai, I.3
Mathre, D.J.4
-
30
-
-
0001542996
-
-
Quallich, G. J.; Blake, J. F.; Woodall, T. M. J. Am. Chem. Soc. 1994, 116, 8516.
-
(1994)
J. Am. Chem. Soc.
, vol.116
, pp. 8516
-
-
Quallich, G.J.1
Blake, J.F.2
Woodall, T.M.3
-
31
-
-
33845282886
-
-
Corey, E. J.; Bakshi, R. K.; Shibata, S. J. Am. Chem. Soc. 1987, 109, 5551.
-
(1987)
J. Am. Chem. Soc.
, vol.109
, pp. 5551
-
-
Corey, E.J.1
Bakshi, R.K.2
Shibata, S.3
-
32
-
-
0024294399
-
-
Evans, D. A. Science 1988, 240, 420.
-
(1988)
Science
, vol.240
, pp. 420
-
-
Evans, D.A.1
-
34
-
-
0343611983
-
-
note
-
The main goal of this study is an improved understanding of the mechanistic course of the reaction and to find out which step is decisive for the experimentally observed selectivity. For the calculation of the relative rate constant and the enantiomeric excess, the theoretical values were used with an accuracy of ±0.01 kcal/mol. It must be noted, however, that the error bars of AMI calculations are larger than that. Furthermore, the neglect of entropy effects leads to an additional uncertainty of more than 0.01 kcal/mol.
-
-
-
-
35
-
-
0342306984
-
-
note
-
28 in which some approximations (e.g., the corresponding entropy parts of reactions with similar activation enthalpies are supposed to be equal; consequently, these entropy terms can be neglected) had to be made. Formula Presented
-
-
-
-
39
-
-
0343611981
-
-
note
-
rel would decrease to 2.13 (corresponding to a ratio (M)-9:(P)-9 = 68:32), hence still predicting the qualitatively right (M)-selectivity.
-
-
-
-
40
-
-
84986671028
-
-
Bringmann, G.; Hartung, T.; Göbel, L.; Schupp, O.; Ewers, C. L. J.; Schöner, B.; Zagst, R.; Peters, K.; von Schnering, H. G.; Burschka, C. Liebigs Ann. Chem. 1992, 225.
-
(1992)
Liebigs Ann. Chem.
, pp. 225
-
-
Bringmann, G.1
Hartung, T.2
Göbel, L.3
Schupp, O.4
Ewers, C.L.J.5
Schöner, B.6
Zagst, R.7
Peters, K.8
Von Schnering, H.G.9
Burschka, C.10
-
41
-
-
33750236967
-
-
(a) Herrmann, W. A.; Brossmer, C.; Öfele, K.; Reisinger, C.-P.; Priermeier, T.; Beller, M.; Fischer, H. Angew. Chem., Int. Ed. Engl. 1995, 34, 1844.
-
(1995)
Angew. Chem., Int. Ed. Engl.
, vol.34
, pp. 1844
-
-
Herrmann, W.A.1
Brossmer, C.2
Öfele, K.3
Reisinger, C.-P.4
Priermeier, T.5
Beller, M.6
Fischer, H.7
-
42
-
-
33748233333
-
-
(b) Beller, M.; Fischer, H.; Herrmann, W. A.; Öfele, K.; Brossmer, C. Angew. Chem., Int. Ed. Engl. 1995, 34, 1848.
-
(1995)
Angew. Chem., Int. Ed. Engl.
, vol.34
, pp. 1848
-
-
Beller, M.1
Fischer, H.2
Herrmann, W.A.3
Öfele, K.4
Brossmer, C.5
-
43
-
-
0033975522
-
-
(P)-6f had previously been obtained by ring opening of racemic 6f with chiral O-nucleophiles, atropo-diastereomeric resolution, followed by saponification of the stereo-pure esters and subsequent recyclization, though in moderate yields and not fully enantiomerically pure. See: Bringmann, G.; Heubes, M.; Breuning, M.; Göbel, L.; Ochse, M.; Schöner, B., Schupp, O. J. Org. Chem., 2000, 65, 722.
-
(2000)
J. Org. Chem.
, vol.65
, pp. 722
-
-
Bringmann, G.1
Heubes, M.2
Breuning, M.3
Göbel, L.4
Ochse, M.5
Schöner, B.6
Schupp, O.7
-
44
-
-
0343611980
-
-
note
-
rel = 26), still with a preferential reduction of (M)-6f.
-
-
-
-
45
-
-
20644469267
-
-
(a) Chen, C.-S.; Fujimoto, Y.; Girdaukas, G.; Sih, C. J. J. Am. Chem. Soc. 1982, 104, 7294.
-
(1982)
J. Am. Chem. Soc.
, vol.104
, pp. 7294
-
-
Chen, C.-S.1
Fujimoto, Y.2
Girdaukas, G.3
Sih, C.J.4
-
47
-
-
0032480394
-
-
Bringmann, G.; Breuning, M.; Endress, H.; Vitt, D.; Peters, K.; Peters, E.-M. Tetrahedron 1998, 54, 10677.
-
(1998)
Tetrahedron
, vol.54
, pp. 10677
-
-
Bringmann, G.1
Breuning, M.2
Endress, H.3
Vitt, D.4
Peters, K.5
Peters, E.-M.6
-
48
-
-
0001499101
-
-
Under different reaction conditions, the kinetic resolution of racemic 14 with 1.1 equiv of (S)-4 and with catechol borane as the reductant (2.0 equiv in toluene or 0.2 equiv in THF) gave weak preferences in favor of (P)-7f (er 60:40 and 77:23, respectively) at < 20% conversion (20 °C), see: Bringmann, G.; Breuning, M. Synlett 1998, 634.
-
(1998)
Synlett
, pp. 634
-
-
Bringmann, G.1
Breuning, M.2
-
49
-
-
37049047699
-
-
For the nonstereoselective preparation of related 1-(2′-tertbutylphenyl)naphthalenes, see i.a. Lesslie, M. S.; Mayer, U. J. H. J. Chem. Soc. 1962, 1401.
-
(1962)
J. Chem. Soc.
, pp. 1401
-
-
Lesslie, M.S.1
Mayer, U.J.H.2
-
50
-
-
0029757771
-
-
rel values > 200, see: Larrow, J. F.; Schaus, S. E.: Jacobsen, E. N. J. Am. Chem. Soc. 1996, 118, 7420.
-
(1996)
J. Am. Chem. Soc.
, vol.118
, pp. 7420
-
-
Larrow, J.F.1
Schaus, S.E.2
Jacobsen, E.N.3
-
51
-
-
0004321724
-
-
available from Oxford Molecular Ltd., The Magdalen Centre, Oxford Science Park, Sandford-on-Thames, Oxford 0X4 4GA, England
-
Rauhut, G.; Chandrasekhar, J.; Alex, A.; Beck, B.; Sauer, W.; Clark, T. VAMP 6.1, available from Oxford Molecular Ltd., The Magdalen Centre, Oxford Science Park, Sandford-on-Thames, Oxford 0X4 4GA, England.
-
VAMP 6.1
-
-
Rauhut, G.1
Chandrasekhar, J.2
Alex, A.3
Beck, B.4
Sauer, W.5
Clark, T.6
-
52
-
-
0342742034
-
-
Tripos Associates, 1699 St. Hanley Road, Suite 303, St. Louis, MO, 63144
-
SYBYL; Tripos Associates, 1699 St. Hanley Road, Suite 303, St. Louis, MO, 63144.
-
SYBYL
-
-
-
56
-
-
0343176495
-
-
note
-
It is necessary to use 12 in analytically pure form.
-
-
-
-
57
-
-
84986730919
-
-
(a) Bringmann, G.; Hartung, T.; Göbel, L.; Schupp, O.; Peters, K.; von Schnering, H. G. Liebigs Ann. Chem. 1992, 769.
-
(1992)
Liebigs Ann. Chem.
, pp. 769
-
-
Bringmann, G.1
Hartung, T.2
Göbel, L.3
Schupp, O.4
Peters, K.5
Von Schnering, H.G.6
-
58
-
-
0005194333
-
-
(b) Peters, K.; Peters, E.-M.; von Schnering, H. G.; Bringmann, G.; Hartung, T. Z. Kristallogr. 1994, 209, 740.
-
(1994)
Z. Kristallogr.
, vol.209
, pp. 740
-
-
Peters, K.1
Peters, E.-M.2
Von Schnering, H.G.3
Bringmann, G.4
Hartung, T.5
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