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Principles of Asymmetric Synthesis
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J.E. Baldwin P.D. Magnus Elsevier Press Oxford
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R.E. Gawley, and J. Aube Principles of Asymmetric Synthesis J.E. Baldwin P.D. Magnus Tetrahedron Organic Chemistry Series Vol. 14 1996 Elsevier Press Oxford
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J. d'Angelo, O. Pages, J. Maddaluno, F. Dumas, and G. Revial Tetrahedron Lett. 24 1983 5869 5872
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Revial, G.5
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J.-W. Chang, D.-P. Jang, B.-J. Uang, F.-L. Liao, and S.-L. Wang Org. Lett. 1 1999 2061 2063
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Chang, J.-W.1
Jang, D.-P.2
Uang, B.-J.3
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Wang, S.-L.5
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21
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0003905731
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J.D. Morrison Academic Press New York
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D.A. Evans J.D. Morrison Asymmetric Synthesis Vol. 3 1984 Academic Press New York
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Asymmetric Synthesis
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Evans, D.A.1
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0001266662
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S.D. Bull, S.G. Davies, S. Jones, and H.J. Sanganee J. Chem. Soc., Perkin Trans. 1 1999 387
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Sanganee, H.J.4
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33
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24944522670
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note
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3, 300 MHz) δ 7.51-7.15 (m, 10H), 4.85-4.71 (m, 2H), 4.68 (s, 2H), 4.46-4.41 (m, 1H), 3.94 (t, 1H, J = 9.5 Hz), 3.58 (dd, 1H J = 9.7, 2.6 Hz), 2.52-2.47 (m, 1H), 0.97 (d, 3H, J = 7.0), 0.84
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35
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24944453382
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note
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3,300 MHz) δ 7.38-7.14 (m, 15H), 5.29 (q, 1H, J = 6.6 Hz), 4.68-4.66 (m, 1H), 4.65 (d, 1H, J = 11.4 Hz), 4.47 (d, 1H, J = 11.4 Hz), 3.87 (t, 1H, J = 9.4 Hz), 3.58 (dd, 1H, J = 9.6, 2.3 Hz), 3.25 (dd, 1H, J = 13.4, 3.2 Hz), 2.82 (dd, 1H, J = 13.4, 9.0 Hz), 1.58 (d, 3H, J = 6.6 Hz)
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36
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0343990120
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Prasad et al. reported that chiral N-acylated 2-imidazolidinones have been demonstrated to undergo highly diastereoselective benzylations and methylations via their sodium enolates and the chiral auxiliaries can be readily recycled with refluxing 2 M NaOH/dioxane (1:1) (30 min) without racemization; see: K. Konigsberger, K. Prasad, O. Repic, and T.J. Blacklock Tetrahedron: Asymmetry 8 1997 2347 2354
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(1997)
Tetrahedron: Asymmetry
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Konigsberger, K.1
Prasad, K.2
Repic, O.3
Blacklock, T.J.4
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37
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24944488260
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note
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15b [ α ] D 18 = + 54.0 (c 2.3, benzene); 4c: [ α ] D 19 = + 97.0 (c 0.71, EtOH).
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38
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0030248578
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For (2R)-2-benzyloxy-3-phenylpropionic acid, see: V. Siraja, A.R.A.S. Deshmukh, V.G. Puranik, and B.M. Bhawal Tetrahedron: Asymmetry 7 1996 2733 2738
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(1996)
Tetrahedron: Asymmetry
, vol.7
, pp. 2733-2738
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Siraja, V.1
Deshmukh, A.R.A.S.2
Puranik, V.G.3
Bhawal, B.M.4
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39
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0024439312
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For (2R)-2-benzyloxypropionic acid, see: M. Nakata, M. Arai, K. Tomooka, N. Ohsawa, and M. Kinoshita Bull. Chem. Soc. Jpn. 62 1989 2618 2635
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(1989)
Bull. Chem. Soc. Jpn.
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, pp. 2618-2635
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Nakata, M.1
Arai, M.2
Tomooka, K.3
Ohsawa, N.4
Kinoshita, M.5
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