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See e.g. Takahashi, H.; Kawakita, T.; Yoshioka, M.; Kobayashi, S.; Ohno, M. Tetrahedron Lett. 1989, 30, 7095; Takahashi, H.; Kawakita, T.; Ohno, M.; Yoshioka, M.; Kobayashi, S. Tetrahedron 1992, 48, 5691. A modified bissulfonamide ligand derived from 2 has been used as a cross-linker in the successfull preparation of a polymeric catalytically active ligand for the enantioselective alkylation of benzaldehyde: Halm, C.; Kurth, M. J. Angew. Chem., Int. Ed. Engl. 1998, 37, 510-512.
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Takahashi, H.1
Kawakita, T.2
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Ohno, M.5
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0026650218
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See e.g. Takahashi, H.; Kawakita, T.; Yoshioka, M.; Kobayashi, S.; Ohno, M. Tetrahedron Lett. 1989, 30, 7095; Takahashi, H.; Kawakita, T.; Ohno, M.; Yoshioka, M.; Kobayashi, S. Tetrahedron 1992, 48, 5691. A modified bissulfonamide ligand derived from 2 has been used as a cross-linker in the successfull preparation of a polymeric catalytically active ligand for the enantioselective alkylation of benzaldehyde: Halm, C.; Kurth, M. J. Angew. Chem., Int. Ed. Engl. 1998, 37, 510-512.
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Tetrahedron
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Takahashi, H.1
Kawakita, T.2
Ohno, M.3
Yoshioka, M.4
Kobayashi, S.5
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0032473520
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See e.g. Takahashi, H.; Kawakita, T.; Yoshioka, M.; Kobayashi, S.; Ohno, M. Tetrahedron Lett. 1989, 30, 7095; Takahashi, H.; Kawakita, T.; Ohno, M.; Yoshioka, M.; Kobayashi, S. Tetrahedron 1992, 48, 5691. A modified bissulfonamide ligand derived from 2 has been used as a cross-linker in the successfull preparation of a polymeric catalytically active ligand for the enantioselective alkylation of benzaldehyde: Halm, C.; Kurth, M. J. Angew. Chem., Int. Ed. Engl. 1998, 37, 510-512.
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Halm, C.1
Kurth, M.J.2
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0000684017
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While this work was in progress, the synthesis in solution and parallel screening of chiral sulfonamide containing diamines was described: Gennari, C.; Ceccarelli, S.; Piarulli, U.; Montalbetti, C. A. G. N.; Jackson, R. F. W. J. Org. Chem. 1998, 63, 5312-5313.
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Gennari, C.1
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Piarulli, U.3
Montalbetti, C.A.G.N.4
Jackson, R.F.W.5
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13
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0028906541
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This hinge was successfully applied in the synthetic receptors of Still et al.; see, e.g.: (a) Yoon, S. S.; Still, W. C. Tetrahedron 1995, 51, 567-578. (b) Shao, Y.; Still, W. C. J. Org. Chem. 1996, 62, 6086- 6087. (c) Pan, Z.; Still, W. C.Tetrahedron Lett. 1996, 37, 8699-8702. (d) Torneiro, M.; Still, W. C.Tetrahedron 1997, 53, 8739-8750.
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Tetrahedron
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Yoon, S.S.1
Still, W.C.2
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14
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0029791484
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This hinge was successfully applied in the synthetic receptors of Still et al.; see, e.g.: (a) Yoon, S. S.; Still, W. C. Tetrahedron 1995, 51, 567-578. (b) Shao, Y.; Still, W. C. J. Org. Chem. 1996, 62, 6086-6087. (c) Pan, Z.; Still, W. C.Tetrahedron Lett. 1996, 37, 8699-8702. (d) Torneiro, M.; Still, W. C.Tetrahedron 1997, 53, 8739-8750.
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J. Org. Chem.
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Shao, Y.1
Still, W.C.2
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15
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0030602167
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This hinge was successfully applied in the synthetic receptors of Still et al.; see, e.g.: (a) Yoon, S. S.; Still, W. C. Tetrahedron 1995, 51, 567-578. (b) Shao, Y.; Still, W. C. J. Org. Chem. 1996, 62, 6086- 6087. (c) Pan, Z.; Still, W. C.Tetrahedron Lett. 1996, 37, 8699-8702. (d) Torneiro, M.; Still, W. C.Tetrahedron 1997, 53, 8739-8750.
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Tetrahedron Lett.
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Pan, Z.1
Still, W.C.2
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16
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0030854052
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This hinge was successfully applied in the synthetic receptors of Still et al.; see, e.g.: (a) Yoon, S. S.; Still, W. C. Tetrahedron 1995, 51, 567-578. (b) Shao, Y.; Still, W. C. J. Org. Chem. 1996, 62, 6086- 6087. (c) Pan, Z.; Still, W. C.Tetrahedron Lett. 1996, 37, 8699-8702. (d) Torneiro, M.; Still, W. C.Tetrahedron 1997, 53, 8739-8750.
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Tetrahedron
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Torneiro, M.1
Still, W.C.2
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Nagel, U.; Kinzel, E.; Andrade, J.; Prescher, G. Chem. Ber. 1986, 119, 3326-3343.
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0342545476
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0343415151
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note
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We have now shown that although upon storage the Fmoc group is less stable, it gave rise to comparable conversions and ee.
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