-
1
-
-
0037756267
-
-
Suami, T.; Tadano, K.; Horiuchi, S. Bull. Chem. Soc. Jpn. 1975, 48, 2895.
-
(1975)
Bull. Chem. Soc. Jpn.
, vol.48
, pp. 2895
-
-
Suami, T.1
Tadano, K.2
Horiuchi, S.3
-
5
-
-
0029935512
-
-
Coulter, C. V.; Gerrard, J. A.; Kraunsoe, J. A. E.; Moore, D. J.; Pratt, A. J. Tetrahedron 1996, 52, 7127.
-
(1996)
Tetrahedron
, vol.52
, pp. 7127
-
-
Coulter, C.V.1
Gerrard, J.A.2
Kraunsoe, J.A.E.3
Moore, D.J.4
Pratt, A.J.5
-
6
-
-
0027932977
-
-
Matsuura, F.; Hamada, Y.; Shioiri, T. Tetrahedron 1994, 50, 9457.
-
(1994)
Tetrahedron
, vol.50
, pp. 9457
-
-
Matsuura, F.1
Hamada, Y.2
Shioiri, T.3
-
7
-
-
0025101848
-
-
(a) Rodriguez, M.; Aumelas, A.; Martinez, J. Tetrahedron Lett. 1990, 31, 5153.
-
(1990)
Tetrahedron Lett.
, vol.31
, pp. 5153
-
-
Rodriguez, M.1
Aumelas, A.2
Martinez, J.3
-
8
-
-
0025641649
-
-
(b) Rodriguez, M.; Heitz, A.; Martinez, J. Tetrahedron Lett. 1990, 31, 7319.
-
(1990)
Tetrahedron Lett.
, vol.31
, pp. 7319
-
-
Rodriguez, M.1
Heitz, A.2
Martinez, J.3
-
9
-
-
0030786212
-
-
(c) Llinares, M.; Devin, C.; Azay, J.; Bergé, G.; Fehrentz, J. A.; Martinez, J. Eur. J. Med. Chem. 1997, 32, 767.
-
(1997)
Eur. J. Med. Chem.
, vol.32
, pp. 767
-
-
Llinares, M.1
Devin, C.2
Azay, J.3
Bergé, G.4
Fehrentz, J.A.5
Martinez, J.6
-
12
-
-
0000818724
-
-
Gizecki, P.; Dhal, R.; Toupet, L.; Dujardin, G. Org. Lett. 2000, 2, 585.
-
(2000)
Org. Lett.
, vol.2
, pp. 585
-
-
Gizecki, P.1
Dhal, R.2
Toupet, L.3
Dujardin, G.4
-
13
-
-
0038432747
-
-
note
-
This study exemplified that the nature of the vinyl ether substituent can significantly modulate the stability of the desired heteroadduct.
-
-
-
-
15
-
-
0038770676
-
-
note
-
10a
-
-
-
-
17
-
-
0001576828
-
-
(a) Katritzky, A. R.; Pernak, J.; Fan, W.-Q.; Saczewski, F. J. Org. Chem. 1991, 56, 4439.
-
(1991)
J. Org. Chem.
, vol.56
, pp. 4439
-
-
Katritzky, A.R.1
Pernak, J.2
Fan, W.-Q.3
Saczewski, F.4
-
18
-
-
0013536642
-
-
(b) Katritzky, A. R.; Fan, W.-Q.; Black, M.; Pernak, J. J. Org. Chem. 1992, 57, 547.
-
(1992)
J. Org. Chem.
, vol.57
, pp. 547
-
-
Katritzky, A.R.1
Fan, W.-Q.2
Black, M.3
Pernak, J.4
-
20
-
-
0001644801
-
-
Breuer, S. W.; Bernath, T.; Ben-Ishai, D. Tetrahedron, 1967, 23, 2869.
-
(1967)
Tetrahedron
, vol.23
, pp. 2869
-
-
Breuer, S.W.1
Bernath, T.2
Ben-Ishai, D.3
-
21
-
-
0000464444
-
-
Lokensgard, J. P.; Fischer, J. W.; Bartz, W. J. Org. Chem, 1985, 50, 5609.
-
(1985)
J. Org. Chem.
, vol.50
, pp. 5609
-
-
Lokensgard, J.P.1
Fischer, J.W.2
Bartz, W.3
-
22
-
-
0037756265
-
-
note
-
1H NMR by its vinylic proton at 6.27 ppm (d, J = 14.8 Hz, E geometry).
-
-
-
-
23
-
-
0038432746
-
-
note
-
1H diastereotopic signals of compounds 2a-c, the chemical shifts of the N,O-acetalic protons H-6 are in the following range: δ endo-β > δ exo-α > δ exo-β.
-
-
-
-
24
-
-
0038093968
-
-
note
-
3-catalyzed reaction occurred between 3 and the N,O-acetal 5f from which the corresponding N-acylimine 4f could not have been obtained.
-
-
-
-
25
-
-
0037756263
-
-
note
-
A possible rationale would be the poisonous effect of the in situ formed methanol on the lanthanide salt.
-
-
-
-
26
-
-
0033215412
-
-
2-mediated α-amidoalkylation of ethyl vinyl ether with the use of 6-type N-(1-benzotriazol-1-alkyl)amides: Katritzky, A. R.; Fan, W. Q.; Silina, A. J. Org. Chem. 1999, 64, 7622.
-
(1999)
J. Org. Chem.
, vol.64
, pp. 7622
-
-
Katritzky, A.R.1
Fan, W.Q.2
Silina, A.3
-
27
-
-
0038770679
-
-
note
-
4) on the expected stepwise mechanism that would involve this intermediate.
-
-
-
-
28
-
-
0033582801
-
-
Meester, W. J. N.; Rutjes, F. P. J. T.; Hermkens, P. H. H.; Hiemstra, H. Tetrahedron Lett. 1999, 40, 1601.
-
(1999)
Tetrahedron Lett.
, vol.40
, pp. 1601
-
-
Meester, W.J.N.1
Rutjes, F.P.J.T.2
Hermkens, P.H.H.3
Hiemstra, H.4
-
29
-
-
0038432749
-
-
note
-
2 and column chromatography gave low yields of purified product (17% for 2e).
-
-
-
-
30
-
-
0038770680
-
-
note
-
2Me) if we assume that the reaction is disfavored when N,O-acetal is substituted by an electron-withdrawing group.
-
-
-
-
31
-
-
0038770677
-
-
note
-
The -(+)-O-vinyl-pantolactone 3 used in this study was found to have 98.5% ee (determined by chiral GC, see Experimental Section).
-
-
-
-
32
-
-
0021685576
-
-
Tamoto, K.; Sugimori, M.; Terashima, S. Tetrahedron 1984, 40, 4617.
-
(1984)
Tetrahedron
, vol.40
, pp. 4617
-
-
Tamoto, K.1
Sugimori, M.2
Terashima, S.3
-
33
-
-
0001209391
-
-
To our knowledge, 5-type compounds have never been used for the preparation of 2-type 6-alkoxy dihydrooxazines. By contrast, the successful use of N,O-acetals as iminium precursors in the asymmetric preparation of β-aminocarbonyl compounds is well documented, see: (a) Ferraris, D.; Young, B.; Dudding, T.; Leckta, T. J. Am. Chem. Soc. 1998, 120, 4849. (b) Kise, N.; Ueda, N. Org. Lett. 1999, 1, 1803. (c) Kise, N.; Ueda, N. J. Org. Chem. 1999, 64, 7511. (d) Pilli, R. A.; Alves, C. F.; Böckelmann, M. A.; Mascarenhas, Y. P.; Nevy, J. G.; Vencato, I. Tetrahedron Lett. 1999, 40, 2891. (e) Ferraris, D.; Young, B.; Dudding, T.; Leckta, T. J. Am. Chem. Soc. 2002, 124, 67 and references therein.
-
(1998)
J. Am. Chem. Soc.
, vol.120
, pp. 4849
-
-
Ferraris, D.1
Young, B.2
Dudding, T.3
Leckta, T.4
-
34
-
-
0000858505
-
-
To our knowledge, 5-type compounds have never been used for the preparation of 2-type 6-alkoxy dihydrooxazines. By contrast, the successful use of N,O-acetals as iminium precursors in the asymmetric preparation of β-aminocarbonyl compounds is well documented, see: (a) Ferraris, D.; Young, B.; Dudding, T.; Leckta, T. J. Am. Chem. Soc. 1998, 120, 4849. (b) Kise, N.; Ueda, N. Org. Lett. 1999, 1, 1803. (c) Kise, N.; Ueda, N. J. Org. Chem. 1999, 64, 7511. (d) Pilli, R. A.; Alves, C. F.; Böckelmann, M. A.; Mascarenhas, Y. P.; Nevy, J. G.; Vencato, I. Tetrahedron Lett. 1999, 40, 2891. (e) Ferraris, D.; Young, B.; Dudding, T.; Leckta, T. J. Am. Chem. Soc. 2002, 124, 67 and references therein.
-
(1999)
Org. Lett.
, vol.1
, pp. 1803
-
-
Kise, N.1
Ueda, N.2
-
35
-
-
0033214855
-
-
To our knowledge, 5-type compounds have never been used for the preparation of 2-type 6-alkoxy dihydrooxazines. By contrast, the successful use of N,O-acetals as iminium precursors in the asymmetric preparation of β-aminocarbonyl compounds is well documented, see: (a) Ferraris, D.; Young, B.; Dudding, T.; Leckta, T. J. Am. Chem. Soc. 1998, 120, 4849. (b) Kise, N.; Ueda, N. Org. Lett. 1999, 1, 1803. (c) Kise, N.; Ueda, N. J. Org. Chem. 1999, 64, 7511. (d) Pilli, R. A.; Alves, C. F.; Böckelmann, M. A.; Mascarenhas, Y. P.; Nevy, J. G.; Vencato, I. Tetrahedron Lett. 1999, 40, 2891. (e) Ferraris, D.; Young, B.; Dudding, T.; Leckta, T. J. Am. Chem. Soc. 2002, 124, 67 and references therein.
-
(1999)
J. Org. Chem.
, vol.64
, pp. 7511
-
-
Kise, N.1
Ueda, N.2
-
36
-
-
0033537912
-
-
To our knowledge, 5-type compounds have never been used for the preparation of 2-type 6-alkoxy dihydrooxazines. By contrast, the successful use of N,O-acetals as iminium precursors in the asymmetric preparation of β-aminocarbonyl compounds is well documented, see: (a) Ferraris, D.; Young, B.; Dudding, T.; Leckta, T. J. Am. Chem. Soc. 1998, 120, 4849. (b) Kise, N.; Ueda, N. Org. Lett. 1999, 1, 1803. (c) Kise, N.; Ueda, N. J. Org. Chem. 1999, 64, 7511. (d) Pilli, R. A.; Alves, C. F.; Böckelmann, M. A.; Mascarenhas, Y. P.; Nevy, J. G.; Vencato, I. Tetrahedron Lett. 1999, 40, 2891. (e) Ferraris, D.; Young, B.; Dudding, T.; Leckta, T. J. Am. Chem. Soc. 2002, 124, 67 and references therein.
-
(1999)
Tetrahedron Lett.
, vol.40
, pp. 2891
-
-
Pilli, R.A.1
Alves, C.F.2
Böckelmann, M.A.3
Mascarenhas, Y.P.4
Nevy, J.G.5
Vencato, I.6
-
37
-
-
0037045227
-
-
and references therein
-
To our knowledge, 5-type compounds have never been used for the preparation of 2-type 6-alkoxy dihydrooxazines. By contrast, the successful use of N,O-acetals as iminium precursors in the asymmetric preparation of β-aminocarbonyl compounds is well documented, see: (a) Ferraris, D.; Young, B.; Dudding, T.; Leckta, T. J. Am. Chem. Soc. 1998, 120, 4849. (b) Kise, N.; Ueda, N. Org. Lett. 1999, 1, 1803. (c) Kise, N.; Ueda, N. J. Org. Chem. 1999, 64, 7511. (d) Pilli, R. A.; Alves, C. F.; Böckelmann, M. A.; Mascarenhas, Y. P.; Nevy, J. G.; Vencato, I. Tetrahedron Lett. 1999, 40, 2891. (e) Ferraris, D.; Young, B.; Dudding, T.; Leckta, T. J. Am. Chem. Soc. 2002, 124, 67 and references therein.
-
(2002)
J. Am. Chem. Soc.
, vol.124
, pp. 67
-
-
Ferraris, D.1
Young, B.2
Dudding, T.3
Leckta, T.4
-
39
-
-
0021914024
-
-
Greenlee, W. J.; Allibone, P. L.; Perlow, D. S.; Patchett, A. A.; Ulm, E. H.; Vassil, T. C. J. Med. Chem. 1985, 28, 434.
-
(1985)
J. Med. Chem.
, vol.28
, pp. 434
-
-
Greenlee, W.J.1
Allibone, P.L.2
Perlow, D.S.3
Patchett, A.A.4
Ulm, E.H.5
Vassil, T.C.6
|