-
3
-
-
84986521040
-
-
Hahn, M.; Heinisch, G.; Holzer, W.; Schartz, H. J. Heterocycl. Chem. 1991, 28, 1189.
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(1991)
J. Heterocycl. Chem.
, vol.28
, pp. 1189
-
-
Hahn, M.1
Heinisch, G.2
Holzer, W.3
Schartz, H.4
-
5
-
-
0344653487
-
-
note
-
1H NMR.
-
-
-
-
8
-
-
0039827338
-
-
and references therein
-
Boymond, L.; Rottländer, M.; Cahiez, G.; Knochel, P. Angew. Chem., Int. Ed. Engl. 1998, 37, 1701 and references therein.
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(1998)
Angew. Chem., Int. Ed. Engl.
, vol.37
, pp. 1701
-
-
Boymond, L.1
Rottländer, M.2
Cahiez, G.3
Knochel, P.4
-
10
-
-
0030864779
-
-
Carver, D. S.; Lindell, S. D.; Saville-Stones, E. A. Tetrahedron 1997, 53, 14481.
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(1997)
Tetrahedron
, vol.53
, pp. 14481
-
-
Carver, D.S.1
Lindell, S.D.2
Saville-Stones, E.A.3
-
11
-
-
0001031256
-
-
Kondo, Y.; Yoshida, A.; Sato, S.; Sakamoto, T. Heterocycles 1996, 42, 105.
-
(1996)
Heterocycles
, vol.42
, pp. 105
-
-
Kondo, Y.1
Yoshida, A.2
Sato, S.3
Sakamoto, T.4
-
14
-
-
0002836067
-
-
Bérillon, L.; Leprêtre, A.; Turck, A.; Plé, N.; Quéguiner, G.; Cahiez, G.; Knochel, P. Synlett 1998, 1359.
-
(1998)
Synlett
, pp. 1359
-
-
Bérillon, L.1
Leprêtre, A.2
Turck, A.3
Plé, N.4
Quéguiner, G.5
Cahiez, G.6
Knochel, P.7
-
15
-
-
0345084300
-
-
note
-
16 See also ref 18.
-
-
-
-
16
-
-
84989029517
-
-
Begtrup, M.; Boyer, G.; Cabildo, P.; Cativiela, C.; Claramunt, R. M.; Elguero, J.; Garcia, J. I.; Toiron, C.; Vedsø, P. Magn. Reson. Chem. 1993, 31, 107.
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(1993)
Magn. Reson. Chem.
, vol.31
, pp. 107
-
-
Begtrup, M.1
Boyer, G.2
Cabildo, P.3
Cativiela, C.4
Claramunt, R.M.5
Elguero, J.6
Garcia, J.I.7
Toiron, C.8
Vedsø, P.9
-
17
-
-
0345515853
-
-
note
-
Attempts to generate 3 via oxidative addition of magnesium to 2 in THF failed.
-
-
-
-
18
-
-
0345084299
-
-
note
-
1H NMR.
-
-
-
-
19
-
-
0345084298
-
-
note
-
Attempts to perform the iodine-lithium exchange with n-BuLi or t-BuLi (-78°C in THF) under conditions of reverse addition gave poor isolated yields (20-25%).
-
-
-
-
21
-
-
0345084296
-
-
note
-
1H NMR of the crude product showed a 3:1 mixture of 4-benzoyl-1-(benzyloxy)pyrazole (4c) and 1-(benzyloxy)-4-(phenylhydroxymethyl)pyrazole (4b), as well as benzyl alcohol.
-
-
-
-
23
-
-
33947091124
-
-
Tamao, K.; Sumitani, K.; Kumada, M. J. Am. Chem. Soc. 1972, 94, 4374.
-
(1972)
J. Am. Chem. Soc.
, vol.94
, pp. 4374
-
-
Tamao, K.1
Sumitani, K.2
Kumada, M.3
-
25
-
-
33847088408
-
-
Negishi, E. I.; King, A. O.; Okukado, N. J. Org. Chem. 1977, 42, 1821.
-
(1977)
J. Org. Chem.
, vol.42
, pp. 1821
-
-
Negishi, E.I.1
King, A.O.2
Okukado, N.3
-
26
-
-
0032518829
-
-
For a review on cross-coupling reactions, see: Stanforth, S. P. Tetrahedron 1998, 54, 263.
-
(1998)
Tetrahedron
, vol.54
, pp. 263
-
-
Stanforth, S.P.1
-
27
-
-
0344222059
-
-
note
-
1H NMR and showed 91% deuterium incorporation in the 4-position of 1-(benzyloxy)-pyrazole when 4-iodotoluene was used, whereas 1-(benzyloxy)pyrazole was the only observed product with 4-iodoaniline, indicating high basicity of 3.
-
-
-
-
28
-
-
0030961821
-
-
2; see the Experimental Section for details. Attempts to generate 5 via direct insertion of zinc (as described by Bhanu Prasad, A. S.; Stevenson, T. M.; Citineni, J. R.; Nyzam, V.; Knochel, P. Tetrahedron 1997, 53, 7237) failed.
-
(1997)
Tetrahedron
, vol.53
, pp. 7237
-
-
Bhanu Prasad, A.S.1
Stevenson, T.M.2
Citineni, J.R.3
Nyzam, V.4
Knochel, P.5
-
29
-
-
0345084293
-
-
note
-
4 (400 mL).
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-
-
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