-
4
-
-
0017849792
-
-
Aoyagi T., Tobe H., Kojima F., Hamada M., Takeuchi T., and Umezawa H. J. Antibiot. 31 (1978) 636
-
(1978)
J. Antibiot.
, vol.31
, pp. 636
-
-
Aoyagi, T.1
Tobe, H.2
Kojima, F.3
Hamada, M.4
Takeuchi, T.5
Umezawa, H.6
-
5
-
-
0024438084
-
-
Iizuka K., Kamijo T., Harada H., Akahane K., Kubota T., Umeyama H., and Kiso Y. J. Chem. Soc., Chem. Commun. (1989) 1678
-
(1989)
J. Chem. Soc., Chem. Commun.
, pp. 1678
-
-
Iizuka, K.1
Kamijo, T.2
Harada, H.3
Akahane, K.4
Kubota, T.5
Umeyama, H.6
Kiso, Y.7
-
8
-
-
0036711997
-
-
Caputo R., Cecere G., Guaragna A., Palumbo G., and Pedatella S. Eur. J. Org. Chem. (2002) 3050
-
(2002)
Eur. J. Org. Chem.
, pp. 3050
-
-
Caputo, R.1
Cecere, G.2
Guaragna, A.3
Palumbo, G.4
Pedatella, S.5
-
17
-
-
0034767574
-
-
Ha H.-J., Ahn Y.-G., Woo J.-S., Lee G.S., and Lee W.K. Bull. Chem. Soc. Jpn. 74 (2001) 1667
-
(2001)
Bull. Chem. Soc. Jpn.
, vol.74
, pp. 1667
-
-
Ha, H.-J.1
Ahn, Y.-G.2
Woo, J.-S.3
Lee, G.S.4
Lee, W.K.5
-
19
-
-
0029117977
-
-
Armone A., Bravo P., Bruché L., Crucianelli M., Vichi L., and Zanda M. Tetrahedron Lett. 36 (1995) 7301
-
(1995)
Tetrahedron Lett.
, vol.36
, pp. 7301
-
-
Armone, A.1
Bravo, P.2
Bruché, L.3
Crucianelli, M.4
Vichi, L.5
Zanda, M.6
-
20
-
-
0029971190
-
-
Armone A., Bravo P., Capelli S., Fronza G., Meille S.V., and Zanda M. J. Org. Chem. 61 (1996) 3375
-
(1996)
J. Org. Chem.
, vol.61
, pp. 3375
-
-
Armone, A.1
Bravo, P.2
Capelli, S.3
Fronza, G.4
Meille, S.V.5
Zanda, M.6
-
21
-
-
0033525459
-
-
Bravo P., Capelli S., Crucianelli M., Cuidetti M., Marowski A.L., Meille S.V., Soloshonok V.A., Sorochinsky A.E., Viani F., and Zanda M. Tetrahedron 55 (1999) 3025
-
(1999)
Tetrahedron
, vol.55
, pp. 3025
-
-
Bravo, P.1
Capelli, S.2
Crucianelli, M.3
Cuidetti, M.4
Marowski, A.L.5
Meille, S.V.6
Soloshonok, V.A.7
Sorochinsky, A.E.8
Viani, F.9
Zanda, M.10
-
22
-
-
0034685988
-
-
Crucianelli M., Bravo P., Armone A., Corradi E., Meille S.V., and Zanda M. J. Org. Chem. 65 (2000) 2965
-
(2000)
J. Org. Chem.
, vol.65
, pp. 2965
-
-
Crucianelli, M.1
Bravo, P.2
Armone, A.3
Corradi, E.4
Meille, S.V.5
Zanda, M.6
-
23
-
-
0035838867
-
-
Pesenti C., Bravo P., Corradi E., Frigerio M., Meille S.V., Panzeri W., Viani F., and Zanda M. J. Org. Chem. 66 (2001) 5637
-
(2001)
J. Org. Chem.
, vol.66
, pp. 5637
-
-
Pesenti, C.1
Bravo, P.2
Corradi, E.3
Frigerio, M.4
Meille, S.V.5
Panzeri, W.6
Viani, F.7
Zanda, M.8
-
25
-
-
2942564312
-
-
Pesenti C., Armone A., Arosio P., Frigerio M., Meille S.V., Panzeri W., Viani F., and Zanda M. Tetrahedron Lett. 45 (2004) 5125
-
(2004)
Tetrahedron Lett.
, vol.45
, pp. 5125
-
-
Pesenti, C.1
Armone, A.2
Arosio, P.3
Frigerio, M.4
Meille, S.V.5
Panzeri, W.6
Viani, F.7
Zanda, M.8
-
26
-
-
0037182004
-
-
Miyata O., Muroya K., Kobayashi T., Yamanaka R., Kajisa S., Koide J., and Naito T. Tetrahedron 58 (2002) 4459
-
(2002)
Tetrahedron
, vol.58
, pp. 4459
-
-
Miyata, O.1
Muroya, K.2
Kobayashi, T.3
Yamanaka, R.4
Kajisa, S.5
Koide, J.6
Naito, T.7
-
27
-
-
0034637349
-
-
Yuste F., Ortiz B., Carrasco A., Peralta M., Quintero L., Sánchez-Obregón R., Walls F., and García Ruano J.L. Tetrahedron: Asymmetry 11 (2000) 3079
-
(2000)
Tetrahedron: Asymmetry
, vol.11
, pp. 3079
-
-
Yuste, F.1
Ortiz, B.2
Carrasco, A.3
Peralta, M.4
Quintero, L.5
Sánchez-Obregón, R.6
Walls, F.7
García Ruano, J.L.8
-
28
-
-
0013174080
-
-
Ortiz B., Hernández A., Quintero L., Sánchez-Obregón R., Yuste F., and García Ruano J.L. Rev. Soc. Quím. Méx. 45 (2001) 163
-
(2001)
Rev. Soc. Quím. Méx.
, vol.45
, pp. 163
-
-
Ortiz, B.1
Hernández, A.2
Quintero, L.3
Sánchez-Obregón, R.4
Yuste, F.5
García Ruano, J.L.6
-
29
-
-
0037424524
-
-
Yuste F., Díaz A., Ortiz B., Sánchez-Obregón R., Walls F., and García Ruano J.L. Tetrahedron: Asymmetry 14 (2003) 549
-
(2003)
Tetrahedron: Asymmetry
, vol.14
, pp. 549
-
-
Yuste, F.1
Díaz, A.2
Ortiz, B.3
Sánchez-Obregón, R.4
Walls, F.5
García Ruano, J.L.6
-
30
-
-
34548432708
-
-
note
-
3 is too weakly basic to form the alkoxide from the primary alcohol, which should be the required intermediate for the TBDMS migration.
-
-
-
-
31
-
-
34548430644
-
-
note
-
The normal Pummerer products were not detected in any of these reactions, may be due to the smooth conditions used.
-
-
-
-
36
-
-
3042827018
-
-
Amide oxygen attack on sulfur resulting in the formation of a six-membered ring intermediate has also been suggested as the second step in the evolution of β-amino sulfoxides (see ) as alternative to the amide nitrogen attack resulting in the azathiacyclobutane suggested by Zanda in Ref. 15d. This proposal was based on the higher stability of a 6-membered over a 4-membered cyclic systems. The attack of the nitrogen to the sulfur is the only able to explain the results obtained from the γ-amino sulfoxides described in this work because the attack of the oxygen would not explain the formation of compounds 6 or 7, bearing the S-N bond. Taking into account that Zanda et al. have also isolated the sulfenamides from the NOPR of (Ref. 15d), an azathiacyclobutane intermediate resulting in the nitrogen attack seem to be the most probable intermediate also for β-amino sulfoxides
-
Amide oxygen attack on sulfur resulting in the formation of a six-membered ring intermediate has also been suggested as the second step in the evolution of β-amino sulfoxides (see. García Ruano J.L., Alemán J., Prado M., and Fernández I. J. Org. Chem. 69 (2004) 4454 ) as alternative to the amide nitrogen attack resulting in the azathiacyclobutane suggested by Zanda in Ref. 15d. This proposal was based on the higher stability of a 6-membered over a 4-membered cyclic systems. The attack of the nitrogen to the sulfur is the only able to explain the results obtained from the γ-amino sulfoxides described in this work because the attack of the oxygen would not explain the formation of compounds 6 or 7, bearing the S-N bond. Taking into account that Zanda et al. have also isolated the sulfenamides from the NOPR of (Ref. 15d), an azathiacyclobutane intermediate resulting in the nitrogen attack seem to be the most probable intermediate also for β-amino sulfoxides
-
(2004)
J. Org. Chem.
, vol.69
, pp. 4454
-
-
García Ruano, J.L.1
Alemán, J.2
Prado, M.3
Fernández, I.4
-
37
-
-
34548409678
-
-
note
-
Similar results were obtained starting from 5a.
-
-
-
|