-
5
-
-
0033607004
-
-
Recent examples of HT-supported transition metal catalysts:
-
Recent examples of HT-supported transition metal catalysts:. Sels B., De Vos D., Buntinx M., Pierard F., Kirsch-De Mesmaeker A., and Jacobs P. Nature 400 (1999) 855
-
(1999)
Nature
, vol.400
, pp. 855
-
-
Sels, B.1
De Vos, D.2
Buntinx, M.3
Pierard, F.4
Kirsch-De Mesmaeker, A.5
Jacobs, P.6
-
8
-
-
0003011263
-
-
Base catalysis of HTs:
-
Base catalysis of HTs:. Kantam M.L., Choudary B.M., Reddy C.V., Rao K.K., and Figueras F. Chem. Commun. (1998) 1033
-
(1998)
Chem. Commun.
, pp. 1033
-
-
Kantam, M.L.1
Choudary, B.M.2
Reddy, C.V.3
Rao, K.K.4
Figueras, F.5
-
9
-
-
12444258697
-
-
Abelló S., Medina F., Tichit D., Pérez-Ramírez J., Groen J.C., Sueiras J.E., Salagre P., and Cesteros Y. Chem. Eur. J. 11 (2005) 728
-
(2005)
Chem. Eur. J.
, vol.11
, pp. 728
-
-
Abelló, S.1
Medina, F.2
Tichit, D.3
Pérez-Ramírez, J.4
Groen, J.C.5
Sueiras, J.E.6
Salagre, P.7
Cesteros, Y.8
-
10
-
-
0034693122
-
-
Our work; Epoxidation:
-
Our work; Epoxidation:. Yamaguchi K., Mori K., Mizugaki T., Ebitani K., and Kaneda K. J. Org. Chem. 65 (2000) 6897
-
(2000)
J. Org. Chem.
, vol.65
, pp. 6897
-
-
Yamaguchi, K.1
Mori, K.2
Mizugaki, T.3
Ebitani, K.4
Kaneda, K.5
-
11
-
-
0037179210
-
-
Honma T., Nakajo M., Mizugaki T., Ebitani K., and Kaneda K. Tetrahedron Lett. 43 (2002) 6229
-
(2002)
Tetrahedron Lett.
, vol.43
, pp. 6229
-
-
Honma, T.1
Nakajo, M.2
Mizugaki, T.3
Ebitani, K.4
Kaneda, K.5
-
14
-
-
20444378561
-
-
Ebitani K., Motokura K., Mizugaki T., and Kaneda K. Angew. Chem., Int. Ed. 44 (2005) 3423
-
(2005)
Angew. Chem., Int. Ed.
, vol.44
, pp. 3423
-
-
Ebitani, K.1
Motokura, K.2
Mizugaki, T.3
Kaneda, K.4
-
15
-
-
2442531710
-
-
One-pot synthesis:
-
One-pot synthesis:. Motokura K., Nishimura D., Mori K., Mizugaki T., Ebitani K., and Kaneda K. J. Am. Chem. Soc. 126 (2004) 5662
-
(2004)
J. Am. Chem. Soc.
, vol.126
, pp. 5662
-
-
Motokura, K.1
Nishimura, D.2
Mori, K.3
Mizugaki, T.4
Ebitani, K.5
Kaneda, K.6
-
17
-
-
22144481359
-
-
Motokura K., Fujita N., Mori K., Mizugaki T., Ebitani K., and Kaneda K. Tetrahedron Lett. 46 (2005) 5507
-
(2005)
Tetrahedron Lett.
, vol.46
, pp. 5507
-
-
Motokura, K.1
Fujita, N.2
Mori, K.3
Mizugaki, T.4
Ebitani, K.5
Kaneda, K.6
-
18
-
-
22144451464
-
-
Motokura K., Fujita N., Mori K., Mizugaki T., Ebitani K., and Kaneda K. J. Am. Chem. Soc. 127 (2005) 9674
-
(2005)
J. Am. Chem. Soc.
, vol.127
, pp. 9674
-
-
Motokura, K.1
Fujita, N.2
Mori, K.3
Mizugaki, T.4
Ebitani, K.5
Kaneda, K.6
-
20
-
-
0032503611
-
-
Asymmetric 1,4-addition to enones:
-
Asymmetric 1,4-addition to enones:. Takaya Y., Ogasawara M., Hayashi T., Sakai M., and Miyaura N. J. Am. Chem. Soc. 120 (1998) 5579
-
(1998)
J. Am. Chem. Soc.
, vol.120
, pp. 5579
-
-
Takaya, Y.1
Ogasawara, M.2
Hayashi, T.3
Sakai, M.4
Miyaura, N.5
-
25
-
-
0032542313
-
-
1,2-Addition to aldehydes:
-
1,2-Addition to aldehydes:. Sakai M., Ueda M., and Miyaura N. Angew. Chem., Int. Ed. 37 (1998) 3279
-
(1998)
Angew. Chem., Int. Ed.
, vol.37
, pp. 3279
-
-
Sakai, M.1
Ueda, M.2
Miyaura, N.3
-
28
-
-
0035929982
-
-
Friedel-Crafts acylation with organoboron reagents:
-
Friedel-Crafts acylation with organoboron reagents:. Frost C.G., and Wadsworth K.J. Chem. Commun. (2001) 2316
-
(2001)
Chem. Commun.
, pp. 2316
-
-
Frost, C.G.1
Wadsworth, K.J.2
-
29
-
-
4644354214
-
-
Phosphinated polystyrene-bound Rh catalyst for 1,4-addition was reported; see:
-
Phosphinated polystyrene-bound Rh catalyst for 1,4-addition was reported; see:. Otomaru Y., Senda T., and Hayashi T. Org. Lett. 6 (2004) 3357
-
(2004)
Org. Lett.
, vol.6
, pp. 3357
-
-
Otomaru, Y.1
Senda, T.2
Hayashi, T.3
-
30
-
-
33744990306
-
-
note
-
2O] was obtained from Tomita Pharmaceutical Co., Ltd.
-
-
-
-
31
-
-
33744979190
-
-
note
-
For recent examples of 1,4-addition reactions using Rh-diene complex catalysts; see Refs. 7c-e.
-
-
-
-
32
-
-
7044254907
-
-
Karageorge G.N., Bertenshaw S., Iben L., Xu C., Sarbin N., Gentile A., and Dubowchik G.M. Bioorg. Med. Chem. Lett. 14 (2004) 5881
-
(2004)
Bioorg. Med. Chem. Lett.
, vol.14
, pp. 5881
-
-
Karageorge, G.N.1
Bertenshaw, S.2
Iben, L.3
Xu, C.4
Sarbin, N.5
Gentile, A.6
Dubowchik, G.M.7
-
33
-
-
33744967639
-
-
note
-
For the large-scale reaction, 1 (12 mmol), 2 (12 mmol), Rh/HT (0.030 g, Rh: 0.006 mmol), 1,5-cod (0.006 mmol), and 1,4-dioxane (20 mL) were used. The reaction mixture was vigorously stirred at 100 °C under Ar for 12 h. After the reaction, the catalyst was removed by filtration, and the filtrate was evaporated. The crude product was purified by silicagel column chromatography (n-hexane/ethyl acetate, 9:1), thus affording 3 as a colorless oil (81% isolated yield).
-
-
-
-
34
-
-
31444457133
-
-
During the preparation of our manuscript, a high performance homogeneous rhodium catalyst (TOF = 14,000) for the 1,4-addition of arylboroxines to α,β-unsaturated ketones was reported. See:
-
During the preparation of our manuscript, a high performance homogeneous rhodium catalyst (TOF = 14,000) for the 1,4-addition of arylboroxines to α,β-unsaturated ketones was reported. See:. Chen F.-X., Kina A., and Hayashi T. Org. Lett. 8 (2006) 341
-
(2006)
Org. Lett.
, vol.8
, pp. 341
-
-
Chen, F.-X.1
Kina, A.2
Hayashi, T.3
-
35
-
-
33744989144
-
-
note
-
In each recycling experiment, 1,5-cod was added.
-
-
-
-
36
-
-
33744967203
-
-
note
-
During adsorption of metal species onto the HT surface, the strong surface basicity of the HT may induce formation of metal hydroxide species; see Refs. 5e,f.
-
-
-
-
37
-
-
33745001936
-
-
note
-
3-weighted Rh K-edge EXAFS of a recovered Rh/HT after the reaction without 1,5-cod, peaks due to Rh-Rh bonds appeared at around 2.4 Å, which suggested the formation of Rh clusters.
-
-
-
-
39
-
-
33745005850
-
-
note
-
In a three-component reaction, a mixture of benzaldehyde (1 mmol), ethyl cyanoacetate (1 mmol), Rh/HT (0.060 g, Rh: 0.012 mmol), 1,5-cod (0.012 mmol), and 1,4-dioxane (2 mL) was vigorously stirred at 60 °C under Ar for 1 h. Then, 2 (1.5 mmol) was then added to the same flask, and allowed to further react at 100 °C under Ar for 8 h. After the reaction, the catalyst was separated by filtration. The filtrate was evaporated and the crude product was purified by column chromatography using silica (n-hexane/ethyl acetate, 9:1) to afford a pure ethyl 2-cyano-3,3-diphenylpropionate (74% isolated yield).
-
-
-
|