-
3
-
-
84981789229
-
-
(c) Horner, L.; Siegel, H.; Büthe, H. Angew. Chem., Int. Ed. Engl. 1968, 7, 942.
-
(1968)
Angew. Chem., Int. Ed. Engl.
, vol.7
, pp. 942
-
-
Horner, L.1
Siegel, H.2
Büthe, H.3
-
4
-
-
0003445429
-
-
Jacobsen, E. N., Pfaltz, A., Yamamoto, H., Eds.; Springer-Verlag: New York
-
(a) Comprehensive Asymmetric Catalysis; Jacobsen, E. N., Pfaltz, A., Yamamoto, H., Eds.; Springer-Verlag: New York, 1999.
-
(1999)
Comprehensive Asymmetric Catalysis
-
-
-
6
-
-
33750923564
-
-
Ligbank (www.ligbank.com), the European Ligand Bank, provides a venue for the exchange of ligands between interested research groups. This initiative is expected to facilitate matching optimal ligand structures with a particular asymmetric transformation.
-
-
-
-
9
-
-
0027408256
-
-
Alcock, N. W.; Brown, J. M.; Hulmes, D. I. Tetrahedron: Asymmetry 1993, 4, 743-756.
-
(1993)
Tetrahedron: Asymmetry
, vol.4
, pp. 743-756
-
-
Alcock, N.W.1
Brown, J.M.2
Hulmes, D.I.3
-
10
-
-
24344441598
-
-
(a) Flanagan, S. P.; Goddard, R.; Guiry, P. J. Tetrahedron 2005, 61, 9808-9821.
-
(2005)
Tetrahedron
, vol.61
, pp. 9808-9821
-
-
Flanagan, S.P.1
Goddard, R.2
Guiry, P.J.3
-
11
-
-
4644223893
-
-
(b) Connolly, D. J.; Lacey, P. M.; McCarthy, M.; Saunders, C. P.; Carroll, A.-M.; Goddard, R.; Guiry, P. J. J. Org. Chem. 2004, 69, 6572-6589.
-
(2004)
J. Org. Chem.
, vol.69
, pp. 6572-6589
-
-
Connolly, D.J.1
Lacey, P.M.2
McCarthy, M.3
Saunders, C.P.4
Carroll, A.-M.5
Goddard, R.6
Guiry, P.J.7
-
12
-
-
0034698223
-
-
(c) McCarthy, M.; Hooper, M. W.; Guiry, P. J. Chem. Commun. 2000, 14, 1333-1334.
-
(2000)
Chem. Commun.
, vol.14
, pp. 1333-1334
-
-
McCarthy, M.1
Hooper, M.W.2
Guiry, P.J.3
-
14
-
-
0034175669
-
-
(e) Lacey, P. M.; McDonnell, C. M.; Guiry, P. J. Tetrahedron Lett. 2000, 41, 2475-2478.
-
(2000)
Tetrahedron Lett.
, vol.41
, pp. 2475-2478
-
-
Lacey, P.M.1
McDonnell, C.M.2
Guiry, P.J.3
-
15
-
-
0033575359
-
-
(f) McCarthy, M.; Goddard, R.; Guiry, P. J. Tetrahedron: Asymmetry 1999, 10, 2797-2807.
-
(1999)
Tetrahedron: Asymmetry
, vol.10
, pp. 2797-2807
-
-
McCarthy, M.1
Goddard, R.2
Guiry, P.J.3
-
16
-
-
0032944239
-
-
(a) Doucet, H.; Fernandez, E.; Layzell, T. P.; Brown, J. M. Chem. - Eur. J. 1999, 5, 1320-1330.
-
(1999)
Chem. - Eur. J.
, vol.5
, pp. 1320-1330
-
-
Doucet, H.1
Fernandez, E.2
Layzell, T.P.3
Brown, J.M.4
-
17
-
-
0028232428
-
-
(b) Brown, J. M.; Hulmes, D. I.; Guiry, P. J. Tetrahedron 1994, 50, 4493-4506.
-
(1994)
Tetrahedron
, vol.50
, pp. 4493-4506
-
-
Brown, J.M.1
Hulmes, D.I.2
Guiry, P.J.3
-
18
-
-
0041931082
-
-
(c) Chen, C.; Li, X.; Schreiber, S. L. J. Am. Chem. Soc. 2003, 125, 10174-10175.
-
(2003)
J. Am. Chem. Soc.
, vol.125
, pp. 10174-10175
-
-
Chen, C.1
Li, X.2
Schreiber, S.L.3
-
19
-
-
33750923399
-
-
PCT Int. Appl. WO 0222526
-
(d) Rautenstrauch, V.; Challand, R.; Churlaud, R.; Morris, R. H.; Abdur-Rashid, K.; Brazi, E.; Mimoun, H. PCT Int. Appl. WO 0222526, 2002.
-
(2002)
-
-
Rautenstrauch, V.1
Challand, R.2
Churlaud, R.3
Morris, R.H.4
Abdur-Rashid, K.5
Brazi, E.6
Mimoun, H.7
-
20
-
-
0038298166
-
-
(e) Morgan, J. B.; Miller, S. P.; Morken, J. P. J. Am. Chem. Soc. 2003, 125, 8702-8703.
-
(2003)
J. Am. Chem. Soc.
, vol.125
, pp. 8702-8703
-
-
Morgan, J.B.1
Miller, S.P.2
Morken, J.P.3
-
21
-
-
0346243940
-
-
(f) Gommermann, N.; Koradin, C.; Polborn, K.; Knochel, P. Angew. Chem., Int. Ed. 2003, 42, 5763-5766.
-
(2003)
Angew. Chem., Int. Ed.
, vol.42
, pp. 5763-5766
-
-
Gommermann, N.1
Koradin, C.2
Polborn, K.3
Knochel, P.4
-
22
-
-
33750901684
-
-
note
-
Following a well-established tradition, we assigned the name Quinazox to a class of ligands with the general structure 3.
-
-
-
-
26
-
-
0043240876
-
-
(c) Desiraoni, G.; Faita, G.; Quadrelli, P. Chem. Rev. 2003, 103, 3119-3154.
-
(2003)
Chem. Rev.
, vol.103
, pp. 3119-3154
-
-
Desiraoni, G.1
Faita, G.2
Quadrelli, P.3
-
27
-
-
0037157765
-
-
Jönsson, C.; Hallman, K.; Andersson, H.; Stemme, G.; Malkoch, M.; Malström, E.; Hult, A.; Moberg, C. Bioorg. Med. Chem. Lett. 2002, 12, 1857-1867.
-
(2002)
Bioorg. Med. Chem. Lett.
, vol.12
, pp. 1857-1867
-
-
Jönsson, C.1
Hallman, K.2
Andersson, H.3
Stemme, G.4
Malkoch, M.5
Malström, E.6
Hult, A.7
Moberg, C.8
-
28
-
-
0032536002
-
-
(e) Ghosh, A. K.; Mathivanan, P.; Cappiello, J. Tetrahedron: Asymmetry 1998, 9, 1-45.
-
(1998)
Tetrahedron: Asymmetry
, vol.9
, pp. 1-45
-
-
Ghosh, A.K.1
Mathivanan, P.2
Cappiello, J.3
-
29
-
-
33744482299
-
-
and references therein
-
For examples of oxazoline-containing axially chiral bidentate ligands, see: Zhang, W.; Xie, F.; Yoshinaga, H.; Kida, T.; Nakatsuji, Y.; Ikeda, I. Synlett 2006, 8, 1185-1188 and references therein.
-
(2006)
Synlett
, vol.8
, pp. 1185-1188
-
-
Zhang, W.1
Xie, F.2
Yoshinaga, H.3
Kida, T.4
Nakatsuji, Y.5
Ikeda, I.6
-
30
-
-
0035095672
-
-
(a) Vani, P. V. S. N.; Chida, A. S.; Srinivasan, R.; Chandrasekharam, M.; Singh, A. K. Synth. Commun. 2001, 31, 219-224. Contrary to our results, the authors found that conversion of 9 to 11 was accompanied by no significant amounts of 12 as the byproduct.
-
(2001)
Synth. Commun.
, vol.31
, pp. 219-224
-
-
Vani, P.V.S.N.1
Chida, A.S.2
Srinivasan, R.3
Chandrasekharam, M.4
Singh, A.K.5
-
31
-
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0025342138
-
-
See also
-
See also: (b) Mori, I.; Ishihara, K.; Heathcock, C. H. J. Org. Chem. 1990, 55, 1114-1117.
-
(1990)
J. Org. Chem.
, vol.55
, pp. 1114-1117
-
-
Mori, I.1
Ishihara, K.2
Heathcock, C.H.3
-
32
-
-
33750908454
-
-
note
-
Although 11 is commercially available, its high cost makes its synthesis from inexpensive 9 an attractive alternative, especially for large-scale preparations of acyl chloride 10.
-
-
-
-
34
-
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0034549484
-
-
For an alternative, four-step synthesis of 8 from ethyl isobutyrate that we used in our exploratory studies, see: Hayashi, Y.; Orikasa, S.; Tanaka, K.; Kanoh, K.; Kiso, Y. J. Org. Chem. 2000, 65, 8402-8405.
-
(2000)
J. Org. Chem.
, vol.65
, pp. 8402-8405
-
-
Hayashi, Y.1
Orikasa, S.2
Tanaka, K.3
Kanoh, K.4
Kiso, Y.5
-
38
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0038384666
-
-
Lim, C. W.; Tissot, O.; Mattison, A.; Hooper, M. W.; Brown, J. M.; Cowley, A. R.; Hulmes, D. I.; Blacker, A. J. Org. Proc. Res. Dev. 2003, 7, 379-384.
-
(2003)
Org. Proc. Res. Dev.
, vol.7
, pp. 379-384
-
-
Lim, C.W.1
Tissot, O.2
Mattison, A.3
Hooper, M.W.4
Brown, J.M.5
Cowley, A.R.6
Hulmes, D.I.7
Blacker, A.J.8
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40
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33751157286
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-
Cai, D.; Payack, J. F.; Bender, D. R.; Hughes, D. L.; Verhoeven, T. R.; Reider, P. J. J. Org. Chem. 1994, 59, 7180-7181.
-
(1994)
J. Org. Chem.
, vol.59
, pp. 7180-7181
-
-
Cai, D.1
Payack, J.F.2
Bender, D.R.3
Hughes, D.L.4
Verhoeven, T.R.5
Reider, P.J.6
-
42
-
-
33750915493
-
-
note
-
2, the most commonly used activator for the formation of 2-oxazolines from nitriles, proved ineffective. Only complexation of Zn(II) with 22 (in itself a potentially tridentate ligand) was noted.
-
-
-
-
43
-
-
33750912470
-
-
note
-
2 = 0.0767 (all data).
-
-
-
-
49
-
-
33750919982
-
-
note
-
2 and LiOAc are the optimal solvent and base, respectively, leading to an improved enantiopurity of 28.
-
-
-
-
50
-
-
33750903374
-
-
note
-
2, KOAc), the reaction furnished 28 in 21% ee (R). This, combined with other results (Table 1, entries 2 and 4), indicates that the rates of the AAA reaction for the two diastereomers are very similar.
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-
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