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2642642035
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For a recent review, see: Gijsen, H. J. M.; Qiao, L.; Fitz, W.; Wong, C.-H. Chem. Rev. 1996, 96, 443.
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Gijsen, H.J.M.1
Qiao, L.2
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Wong, C.-H.4
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4
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0242432417
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For representative recent examples of reactions where H-bonds may play a key role as chiral Lewis acids, see: (a) Huang, Y.; Unni, A. K.; Thadani, A. N. ; Rawal, V. H. Nature (London) 2003, 424, 146. (b) Wenzel, A. G.; Jacobsen, E. N. J. Am. Chem. Soc. 2002, 124, 12964. (c) Vachal, P.; Jacobsen, E. N. J. Am. Chem. Soc. 2002, 124, 10012.
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Nature (London)
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Huang, Y.1
Unni, A.K.2
Thadani, A.N.3
Rawal, V.H.4
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5
-
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0037032312
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For representative recent examples of reactions where H-bonds may play a key role as chiral Lewis acids, see: (a) Huang, Y.; Unni, A. K.; Thadani, A. N. ; Rawal, V. H. Nature (London) 2003, 424, 146. (b) Wenzel, A. G.; Jacobsen, E. N. J. Am. Chem. Soc. 2002, 124, 12964. (c) Vachal, P.; Jacobsen, E. N. J. Am. Chem. Soc. 2002, 124, 10012.
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J. Am. Chem. Soc.
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Wenzel, A.G.1
Jacobsen, E.N.2
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6
-
-
0037189898
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For representative recent examples of reactions where H-bonds may play a key role as chiral Lewis acids, see: (a) Huang, Y.; Unni, A. K.; Thadani, A. N. ; Rawal, V. H. Nature (London) 2003, 424, 146. (b) Wenzel, A. G.; Jacobsen, E. N. J. Am. Chem. Soc. 2002, 124, 12964. (c) Vachal, P.; Jacobsen, E. N. J. Am. Chem. Soc. 2002, 124, 10012.
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Vachal, P.1
Jacobsen, E.N.2
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7
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0017785167
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(a) Pougny, J.-R.; Jaquinet, J.-C.; Nassr, M.; Duchet, D.; Milat, M-L.; Sinay, P. J. Am. Chem. Soc. 1977, 99, 6762.
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Pougny, J.-R.1
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Nassr, M.3
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Milat, M.-L.5
Sinay, P.6
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8
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84985624827
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(b) Schmidt, R. R.; Michel, J. Angew. Chem., Int. Ed. Engl. 1980, 19, 731.
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Schmidt, R.R.1
Michel, J.2
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9
-
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0142101621
-
-
note
-
5a
-
-
-
-
11
-
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0023726525
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(c) Nicolaou, K. C.; Daines, R. A.; Ogawa, Y.; Chakraborty, T. K. J. Am. Chem. Soc. 1988, 110, 4696.
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Nicolaou, K.C.1
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Ogawa, Y.3
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12
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0038600686
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(d) Mukaiyama, T.; Hashihayata, T.; Mandai, H. Chem. Lett. 2003, 32, 340.
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Mukaiyama, T.1
Hashihayata, T.2
Mandai, H.3
-
13
-
-
0142101620
-
-
note
-
Caution: picric acid is a potentially explosive compound when thoroughly dried (water content < 10%). We did not observe any difficulties of this type during these experiments.
-
-
-
-
15
-
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0142133291
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(a) Iwachido, T.; Oosawa, S.; Toei, K. Bull. Chem. Soc. Jpn. 1985, 58, 2415.
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Iwachido, T.1
Oosawa, S.2
Toei, K.3
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16
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0002267777
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-
(b) Kolthoff, I. M.; Chantooni, M. K.; Bhomik, S. J. Am. Chem. Soc. 1968, 90, 23.
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Kolthoff, I.M.1
Chantooni, M.K.2
Bhomik, S.3
-
17
-
-
0142101618
-
-
(a) Smith, J. Jr.; Brotherton, T. K.; Lynn, J. W. J. Org. Chem. 1965, 30, 1262.
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Smith J., Jr.1
Brotherton, T.K.2
Lynn, J.W.3
-
18
-
-
0142101617
-
-
(b) Ulrich, H.; Tucker, B.; Sayigh, A. A. R. Angew. Chem. Int. Ed. 1967, 6, 708.
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Ulrich, H.1
Tucker, B.2
Sayigh, A.A.R.3
-
19
-
-
0142070030
-
-
note
-
11] requires m/z 369.0288. Found: 369.0282 (ESI+).
-
-
-
-
20
-
-
0142133290
-
-
note
-
All compounds gave satisfactory analytical data.
-
-
-
-
21
-
-
0142038093
-
-
note
-
1H NMR spectroscopy.
-
-
-
-
22
-
-
0002957772
-
-
Compound 2 has been characterized previously: Hosono, S.; Kim, W.-S.; Sasai, H.; Shibisaki, M. J. Org. Chem. 1995, 60, 4.
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J. Org. Chem.
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Hosono, S.1
Kim, W.-S.2
Sasai, H.3
Shibisaki, M.4
-
23
-
-
0142133288
-
-
note
-
6: C, 77.27; H, 8.03. Found: C, 77.00; H, 8.00.
-
-
-
-
25
-
-
0027211051
-
-
For compound 9, see: (a) Nishizawa, M.; Garcia, D. M.; Shin, T.; Yamada, H. Chem. Pharm. Bull. 1993, 41, 784. (b) Mukaiyama, T.; Takashima, T.; Katsurada, M.; Aizawa, H. Chem. Lett. 1991, 533.
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Chem. Pharm. Bull.
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-
Nishizawa, M.1
Garcia, D.M.2
Shin, T.3
Yamada, H.4
-
26
-
-
0027211051
-
-
For compound 9, see: (a) Nishizawa, M.; Garcia, D. M.; Shin, T.; Yamada, H. Chem. Pharm. Bull. 1993, 41, 784. (b) Mukaiyama, T.; Takashima, T.; Katsurada, M.; Aizawa, H. Chem. Lett. 1991, 533.
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Chem. Lett.
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Mukaiyama, T.1
Takashima, T.2
Katsurada, M.3
Aizawa, H.4
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