-
2
-
-
3142526915
-
-
Valverde, S.; Martin-Lomas, M.; Herradon, B.; Garcia-Ochoa, S. Tetrahedron 1987, 43, 1895-1901.
-
(1987)
Tetrahedron
, vol.43
, pp. 1895-1901
-
-
Valverde, S.1
Martin-Lomas, M.2
Herradon, B.3
Garcia-Ochoa, S.4
-
3
-
-
0043229399
-
-
The basis for the effect, which has been known for some time, of carboxylic acids upon Wittig reactions of stabilized ylides is not well understood. See: (a) Buchanan, J. G.; Edgar, A. R.; Power, M. J.; Theaker, P. D. Carbohydr. Res. 1974, 38, C22-C24.
-
(1974)
Carbohydr. Res.
, vol.38
-
-
Buchanan, J.G.1
Edgar, A.R.2
Power, M.J.3
Theaker, P.D.4
-
6
-
-
0003081967
-
-
(d) Mulzer, J.; Kappert, M. Angew. Chem., Int. Ed. Engl. 1983, 22, 63-64.
-
(1983)
Angew. Chem., Int. Ed. Engl.
, vol.22
, pp. 63-64
-
-
Mulzer, J.1
Kappert, M.2
-
7
-
-
0030570847
-
-
Seo, Y.; Cho, K. W.; Rho, J.-R.; Shin, J.; Kwon, B.-M.; Bok, S.-H.; Song, J.-I. Tetrahedron 1996, 52, 10583-10596.
-
(1996)
Tetrahedron
, vol.52
, pp. 10583-10596
-
-
Seo, Y.1
Cho, K.W.2
Rho, J.-R.3
Shin, J.4
Kwon, B.-M.5
Bok, S.-H.6
Song, J.-I.7
-
8
-
-
0000425634
-
-
2Me was freshly prepared from the corresponding phosphonium bromide as a toluene solution according to Aspinall, I. A.; Cowley, P. M.; Mitchell, G.; Raynor, C. M.; Stoodley, R. J. J. Chem. Soc., Perkin Trans. 1 1999, 2591-2599.
-
(1999)
J. Chem. Soc., Perkin Trans. 1
, pp. 2591-2599
-
-
Aspinall, I.A.1
Cowley, P.M.2
Mitchell, G.3
Raynor, C.M.4
Stoodley, R.J.5
-
9
-
-
0042728111
-
-
note
-
1H NMR. All yields are of the pure E/Z mixture after chromatography.
-
-
-
-
10
-
-
0001670272
-
-
(a) Meyers, A. I.; Lawson, J. P.; Carver, D. R. J. Org. Chem. 1981, 46, 3119-3132.
-
(1981)
J. Org. Chem.
, vol.46
, pp. 3119-3132
-
-
Meyers, A.I.1
Lawson, J.P.2
Carver, D.R.3
-
14
-
-
0000086042
-
-
(e) Tamura, R.; Saegusa, K.; Kakihana, M.; Oda, D. J. Org. Chem. 1988, 53, 2723-2728.
-
(1988)
J. Org. Chem.
, vol.53
, pp. 2723-2728
-
-
Tamura, R.1
Saegusa, K.2
Kakihana, M.3
Oda, D.4
-
17
-
-
0041726893
-
-
note
-
2 was successively evaporated. This solution was then added to a stirred solution of 3 (7.60 g, 40.0 mmol) and benzoic acid (976 mg, 8.00 mmol) in toluene (200 mL) at 90 °C. After 10 min the solvent was evaporated, and the residue was purified by flash chromatography with hexanes/EtOAc (1:1 → 1:2) to give 7.71 g (78%) of 4 (E/Z = 91:9) as a pale yellow solid.
-
-
-
-
18
-
-
0042227212
-
-
note
-
1H NMR. All yields are of the pure E/Z mixture after chromatography.
-
-
-
-
19
-
-
37049076538
-
-
Prepared in one step (90% yield) from L-arabinose: Perigaud, C.; Gosselin, G.; Imbach, J.-L. J. Chem. Soc., Perkin Trans. 1 1992, 1943-1952.
-
(1992)
J. Chem. Soc., Perkin Trans. 1
, pp. 1943-1952
-
-
Perigaud, C.1
Gosselin, G.2
Imbach, J.-L.3
-
20
-
-
0031569704
-
-
Prepared in two steps (67% yield) from (S)-ethyl lactate: Enders, D.; Jandeleit, B.; von Berg, S. J. Organomet. Chem. 1997, 553, 219-236.
-
(1997)
J. Organomet. Chem.
, vol.553
, pp. 219-236
-
-
Enders, D.1
Jandeleit, B.2
Von Berg, S.3
-
21
-
-
1542442610
-
-
The reaction of 6 with 5a in MeOH provides 7 in 81% yield (E/Z = 20:80), see ref 2
-
Bernardi, A.; Cardani, S.; Scolastico, C.; Villa, R. Tetrahedron 1988, 44, 491-502. The reaction of 6 with 5a in MeOH provides 7 in 81% yield (E/Z = 20:80), see ref 2.
-
(1988)
Tetrahedron
, vol.44
, pp. 491-502
-
-
Bernardi, A.1
Cardani, S.2
Scolastico, C.3
Villa, R.4
-
22
-
-
0023250442
-
-
Prepared in two steps (78%) from 2,3-O-isopropylidene-D-threitol: Iida, H.; Yamazaki, N.; Kibayashi, C. J. Org. Chem. 1987, 52, 3337-3342.
-
(1987)
J. Org. Chem.
, vol.52
, pp. 3337-3342
-
-
Iida, H.1
Yamazaki, N.2
Kibayashi, C.3
-
23
-
-
33751386344
-
-
Prepared in one step (44%) from 1,2:3,4:5,6-tri-O-isopropylidene-D-mannitol: Wu, W.-L.; Wu, Y.-L. J. Org. Chem. 1993, 58, 3586-3588.
-
(1993)
J. Org. Chem.
, vol.58
, pp. 3586-3588
-
-
Wu, W.-L.1
Wu, Y.-L.2
-
24
-
-
0021106325
-
-
The reaction of 10 with 5a in MeOH provides 11 in 70% yield (E/Z= 12:88), see ref 2
-
Horton, D.; Machinami, T.; Takagi, Y. Carbohydr. Res. 1983, 121, 135-161. The reaction of 10 with 5a in MeOH provides 11 in 70% yield (E/Z= 12:88), see ref 2.
-
(1983)
Carbohydr. Res.
, vol.121
, pp. 135-161
-
-
Horton, D.1
Machinami, T.2
Takagi, Y.3
-
25
-
-
24444453551
-
-
Prepared in two steps (68%) from 1,2:5,6-di-O-isopropylidene-α-D-glucofuranose: Kovár, J.; Baer, H. H. Can. J. Chem. 1973, 51, 1801-1811.
-
(1973)
Can. J. Chem.
, vol.51
, pp. 1801-1811
-
-
Kovár, J.1
Baer, H.H.2
-
26
-
-
0000401162
-
-
The reaction of 12 with 5a in MeOH provides 13 in unknown yield (E/Z = 8:92)
-
Tronchet, J. M. J.; Gentile, B. Helv. Chim. Acta 1979, 62, 2091-2098. The reaction of 12 with 5a in MeOH provides 13 in unknown yield (E/Z = 8:92).
-
(1979)
Helv. Chim. Acta
, vol.62
, pp. 2091-2098
-
-
Tronchet, J.M.J.1
Gentile, B.2
-
29
-
-
0025044217
-
-
Prepared in one step (68%) from D-ribose: Kaskar, B.; Heise, G. L.; Michalak, R. S.; Vishnuvajjala, B. R. Synthesis 1990, 1031-1032.
-
(1990)
Synthesis
, pp. 1031-1032
-
-
Kaskar, B.1
Heise, G.L.2
Michalak, R.S.3
Vishnuvajjala, B.R.4
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