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4
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53549121402
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(d) Melchiorre, P.; Marigo, M.; Carlone, A.; Bartoli, G. Angew. Chem. Int. Ed. 2008, 47, 6138.
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Angew. Chem. Int. Ed.
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Melchiorre, P.1
Marigo, M.2
Carlone, A.3
Bartoli, G.4
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11
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33746290813
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aof 16, have been used in iminium catalysis
-
aof 16, have been used in iminium catalysis: Brandau, S.; Landa, A.; Franzen, J.; Marigo, M.; Jørgensen, K. A. Angew. Chem. Int. Ed. 2006, 45, 4305.
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(2006)
Angew. Chem. Int. Ed.
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Brandau, S.1
Landa, A.2
Franzen, J.3
Marigo, M.4
Jørgensen, K.A.5
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12
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-
37249064645
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For few selected examples, see: (a)
-
For few selected examples, see: (a) Gotoh, H.; Ishikawa, H.; Hayashi, Y. Org. Lett. 2007, 9, 5307.
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(2007)
Org. Lett.
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, pp. 5307
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Gotoh, H.1
Ishikawa, H.2
Hayashi, Y.3
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13
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-
36148957495
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(b) Palomo, C.; Landa, A.; Mielgo, A.; Oiarbide, M.; Puente, A.; Vera, S. Angew. Chem. Int. Ed. 2007, 46, 8431.
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(2007)
Angew. Chem. Int. Ed.
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Palomo, C.1
Landa, A.2
Mielgo, A.3
Oiarbide, M.4
Puente, A.5
Vera, S.6
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14
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-
47149096183
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Alonso, D. A.; Kitagaki, S.; Utsumi, N.; Barbas, C. F. III. Angew. Chem. Int. Ed. 2008, 47, 4588.
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(2008)
Angew. Chem. Int. Ed.
, vol.47
, pp. 4588
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-
Alonso, D.A.1
Kitagaki, S.2
Utsumi, N.3
Barbas III, C.F.4
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15
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78649846478
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Cassani, C.; Tian, X.; Escudero-Adán, E. C.; Melchiorre, P. Chem. Commun. 2011, 47, 233.
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(2011)
Chem. Commun.
, vol.47
, pp. 233
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Cassani, C.1
Tian, X.2
Escudero-Adán, E.C.3
Melchiorre, P.4
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16
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77955688261
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Cid, M. B.; Duce, S.; Morales, S.; Rodrigo, E.; Ruano, J. L. G. Org. Lett. 2010, 12, 3586.
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(2010)
Org. Lett.
, vol.12
, pp. 3586
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Cid, M.B.1
Duce, S.2
Morales, S.3
Rodrigo, E.4
Ruano, J.L.G.5
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17
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79951857870
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a values are referred to DMSO and are taken from the Bordwell Tables, see
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a values are referred to DMSO and are taken from the Bordwell Tables, see: http://www.chem.wisc.edu/areas/reich/pkatable/index.htm.
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-
-
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18
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0003922509
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'Enolate-like stabilisation of the anion may be achieved for any organic compound with an electron-withdrawing functional group, with at least one π-bond attached to a saturated carbon atom having at least one hydrogen atom': Oxford University Press: Oxford
-
'Enolate-like stabilisation of the anion may be achieved for any organic compound with an electron-withdrawing functional group, with at least one π-bond attached to a saturated carbon atom having at least one hydrogen atom': Clayden, J.; Greeves, N.; Warren, S.; Wothers, P. Organic Chemistry; Oxford University Press: Oxford, 2001, 529.
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(2001)
Organic Chemistry
, pp. 529
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Clayden, J.1
Greeves, N.2
Warren, S.3
Wothers, P.4
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19
-
-
0004061172
-
-
Anions on an alkyl side chain that are immediately adjacent to an aromatic ring are subject to varying degrees of stabilisation; this effect is stronger in the 2- or 4-position of a pyridine. Such anions are stabilised in much the same way as an enolate. The word 'enaminate' indicates this type of nitrogen-containing enolate-like anion: 5th Ed.; John Wiley & Sons: Hoboken
-
Anions on an alkyl side chain that are immediately adjacent to an aromatic ring are subject to varying degrees of stabilisation; this effect is stronger in the 2- or 4-position of a pyridine. Such anions are stabilised in much the same way as an enolate. The word 'enaminate' indicates this type of nitrogen-containing enolate-like anion: Joule, J. A.; Mills, K. Heterocyclic Chemistry, 5th Ed.; John Wiley & Sons: Hoboken, 2010, 54-55.
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(2010)
Heterocyclic Chemistry
, pp. 54-55
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-
Joule, J.A.1
Mills, K.2
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20
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13444267885
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(a) Marigo, M.; Wabnitz, T. C.; Fielenbach, D.; Jørgensen, K. A. Angew. Chem. Int. Ed. 2005, 44, 794.
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(2005)
Angew. Chem. Int. Ed.
, vol.44
, pp. 794
-
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Marigo, M.1
Wabnitz, T.C.2
Fielenbach, D.3
Jørgensen, K.A.4
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21
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22144459070
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(b) Hayashi, Y.; Gotoh, H.; Hayashi, T.; Shoji, M. Angew. Chem. Int. Ed. 2005, 44, 4212.
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(2005)
Angew. Chem. Int. Ed.
, vol.44
, pp. 4212
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Hayashi, Y.1
Gotoh, H.2
Hayashi, T.3
Shoji, M.4
-
22
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51749084445
-
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(c) For a recent review on the efficiency of TMS-diaryl prolinol catalysts, see: Mielgo, A.; Palomo, C. Chem. Asian J. 2008, 3, 922.
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(2008)
Chem. Asian J.
, vol.3
, pp. 922
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Mielgo, A.1
Palomo, C.2
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23
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78449261043
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For the industrial scale asymmetric synthesis of Telcagepant, see
-
For the industrial scale asymmetric synthesis of Telcagepant, see: Xu, F.; Zacuto, M.; Yoshikawa, N.; Desmond, R.; Hoerrner, S.; Itoh, T.; Journet, M.; Humphrey, G. R.; Cowden, C.; Strotman, N.; Devine, P. J. Org. Chem. 2010, 75, 7829.
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(2010)
J. Org. Chem.
, vol.75
, pp. 7829
-
-
Xu, F.1
Zacuto, M.2
Yoshikawa, N.3
Desmond, R.4
Hoerrner, S.5
Itoh, T.6
Journet, M.7
Humphrey, G.R.8
Cowden, C.9
Strotman, N.10
Devine, P.11
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24
-
-
79951856552
-
-
note
-
2O as the solvent system is probably a consequence of the poor solubility of some among the unsaturated aldehydes 2 in this reaction media.
-
-
-
-
25
-
-
79951854718
-
-
note
-
The presence of an alkyl substituent at the b-position of the enal is not tolerated under the reaction condition: i.e., crotonaldehyde remained unreactive.
-
-
-
-
26
-
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79951853943
-
-
note
-
The observed modest diastereocontrol is not surprising: the privileged secondary amine catalysts, such as B, generally infer high enantioselectivity but with poor diastereocontrol when promoting the conjugate addition of prochiral carbon nucleophiles to α,β-unsaturated aldehydes; see, for example, ref. 6.
-
-
-
-
27
-
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79951858545
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-
note
-
4 reduction is requested since the alcohols 3 allow for a far easier HPLC analysis than the aldehyde precursors.
-
-
-
-
28
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79951850772
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Crystallographic data have been deposited with the accession number CCDC 802673(5), and are available free of charge via
-
Crystallographic data have been deposited with the Cambridge Crystallographic Data Centre, accession number CCDC 802673(5), and are available free of charge via www.ccdc.cam.ac.uk/data-request/cif.
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-
-
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29
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78249273274
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and references therein
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(a) Cooper, T. W. J.; Campbell, I. B.; Macdonald, S. J. F. Angew. Chem. Int. Ed. 2010, 49, 8082; and references therein.
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(2010)
Angew. Chem. Int. Ed.
, vol.49
, pp. 8082
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Cooper, T.W.J.1
Campbell, I.B.2
Macdonald, S.J.F.3
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30
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65649142070
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(b) Pitt, W. R.; Parry, D. M.; Perry, B. G.; Groom, C. R. J. Med. Chem. 2009, 52, 2952.
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(2009)
J. Med. Chem.
, vol.52
, pp. 2952
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Pitt, W.R.1
Parry, D.M.2
Perry, B.G.3
Groom, C.R.4
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31
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79951850289
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note
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Benzazepines are the core structure of numerous biologically active compounds. More specifically, the tetrahydro-1-benzazepine scaffold can be found in a series of approved drugs such as Tolvaptan, Benazepril, Mozavaptan and Zilpaterol among others.
-
-
-
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32
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79951857409
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note
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2-MeOH, 95:5). See Supporting Information for full experimental details and product characterisation.
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