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1
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0001084079
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Duhamel, L.; Duhamel, P.; Launay, J. C.; Plaquevant, J. C. Bull. Soc. Chim. Fr. 1984, II-421. "Enantiomeric enrichment" described here is a thermodynamic process. The term "deracemization" includes kinetic processes as well as thermodynamie ones. See also ref 6, note 5. There are many papers which report kinetic asymmetric protonation. For a review: Fehr, C. Chimia 1991, 45, 253. Waldmann, H. Nachr. Chem. Tech. Lab. 1991, 39, 413. Fehr, C. Angew. Chem., Int. Ed. Engl. 1996, 35, 2566. Some recent works: Ishihara, K.; Kaneeda, M.; Yamamoto, H. J. Am. Chem. Soc. 1994, 116, 11179. Vedejs, E.; Lee, N. J. Am. Chem. Soc. 1995, 117, 891. Nakamura, Y.; Takeuchi, S.; Ohira, A.; Ohgo, Y. Tetrahedron Lett. 1996, 37, 2805; and references cited therein. For the synthetic equivalent of this transformation: Harada, T.; Shintani, T.; Oku, A. J. Am. Chem. Soc. 1995, 117, 12346.
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Bull. Soc. Chim. Fr.
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Duhamel, L.1
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Duhamel, L.; Duhamel, P.; Launay, J. C.; Plaquevant, J. C. Bull. Soc. Chim. Fr. 1984, II-421. "Enantiomeric enrichment" described here is a thermodynamic process. The term "deracemization" includes kinetic processes as well as thermodynamie ones. See also ref 6, note 5. There are many papers which report kinetic asymmetric protonation. For a review: Fehr, C. Chimia 1991, 45, 253. Waldmann, H. Nachr. Chem. Tech. Lab. 1991, 39, 413. Fehr, C. Angew. Chem., Int. Ed. Engl. 1996, 35, 2566. Some recent works: Ishihara, K.; Kaneeda, M.; Yamamoto, H. J. Am. Chem. Soc. 1994, 116, 11179. Vedejs, E.; Lee, N. J. Am. Chem. Soc. 1995, 117, 891. Nakamura, Y.; Takeuchi, S.; Ohira, A.; Ohgo, Y. Tetrahedron Lett. 1996, 37, 2805; and references cited therein. For the synthetic equivalent of this transformation: Harada, T.; Shintani, T.; Oku, A. J. Am. Chem. Soc. 1995, 117, 12346.
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Duhamel, L.; Duhamel, P.; Launay, J. C.; Plaquevant, J. C. Bull. Soc. Chim. Fr. 1984, II-421. "Enantiomeric enrichment" described here is a thermodynamic process. The term "deracemization" includes kinetic processes as well as thermodynamie ones. See also ref 6, note 5. There are many papers which report kinetic asymmetric protonation. For a review: Fehr, C. Chimia 1991, 45, 253. Waldmann, H. Nachr. Chem. Tech. Lab. 1991, 39, 413. Fehr, C. Angew. Chem., Int. Ed. Engl. 1996, 35, 2566. Some recent works: Ishihara, K.; Kaneeda, M.; Yamamoto, H. J. Am. Chem. Soc. 1994, 116, 11179. Vedejs, E.; Lee, N. J. Am. Chem. Soc. 1995, 117, 891. Nakamura, Y.; Takeuchi, S.; Ohira, A.; Ohgo, Y. Tetrahedron Lett. 1996, 37, 2805; and references cited therein. For the synthetic equivalent of this transformation: Harada, T.; Shintani, T.; Oku, A. J. Am. Chem. Soc. 1995, 117, 12346.
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Duhamel, L.; Duhamel, P.; Launay, J. C.; Plaquevant, J. C. Bull. Soc. Chim. Fr. 1984, II-421. "Enantiomeric enrichment" described here is a thermodynamic process. The term "deracemization" includes kinetic processes as well as thermodynamie ones. See also ref 6, note 5. There are many papers which report kinetic asymmetric protonation. For a review: Fehr, C. Chimia 1991, 45, 253. Waldmann, H. Nachr. Chem. Tech. Lab. 1991, 39, 413. Fehr, C. Angew. Chem., Int. Ed. Engl. 1996, 35, 2566. Some recent works: Ishihara, K.; Kaneeda, M.; Yamamoto, H. J. Am. Chem. Soc. 1994, 116, 11179. Vedejs, E.; Lee, N. J. Am. Chem. Soc. 1995, 117, 891. Nakamura, Y.; Takeuchi, S.; Ohira, A.; Ohgo, Y. Tetrahedron Lett. 1996, 37, 2805; and references cited therein. For the synthetic equivalent of this transformation: Harada, T.; Shintani, T.; Oku, A. J. Am. Chem. Soc. 1995, 117, 12346.
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Duhamel, L.; Duhamel, P.; Launay, J. C.; Plaquevant, J. C. Bull. Soc. Chim. Fr. 1984, II-421. "Enantiomeric enrichment" described here is a thermodynamic process. The term "deracemization" includes kinetic processes as well as thermodynamie ones. See also ref 6, note 5. There are many papers which report kinetic asymmetric protonation. For a review: Fehr, C. Chimia 1991, 45, 253. Waldmann, H. Nachr. Chem. Tech. Lab. 1991, 39, 413. Fehr, C. Angew. Chem., Int. Ed. Engl. 1996, 35, 2566. Some recent works: Ishihara, K.; Kaneeda, M.; Yamamoto, H. J. Am. Chem. Soc. 1994, 116, 11179. Vedejs, E.; Lee, N. J. Am. Chem. Soc. 1995, 117, 891. Nakamura, Y.; Takeuchi, S.; Ohira, A.; Ohgo, Y. Tetrahedron Lett. 1996, 37, 2805; and references cited therein. For the synthetic equivalent of this transformation: Harada, T.; Shintani, T.; Oku, A. J. Am. Chem. Soc. 1995, 117, 12346.
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Duhamel, L.; Duhamel, P.; Launay, J. C.; Plaquevant, J. C. Bull. Soc. Chim. Fr. 1984, II-421. "Enantiomeric enrichment" described here is a thermodynamic process. The term "deracemization" includes kinetic processes as well as thermodynamie ones. See also ref 6, note 5. There are many papers which report kinetic asymmetric protonation. For a review: Fehr, C. Chimia 1991, 45, 253. Waldmann, H. Nachr. Chem. Tech. Lab. 1991, 39, 413. Fehr, C. Angew. Chem., Int. Ed. Engl. 1996, 35, 2566. Some recent works: Ishihara, K.; Kaneeda, M.; Yamamoto, H. J. Am. Chem. Soc. 1994, 116, 11179. Vedejs, E.; Lee, N. J. Am. Chem. Soc. 1995, 117, 891. Nakamura, Y.; Takeuchi, S.; Ohira, A.; Ohgo, Y. Tetrahedron Lett. 1996, 37, 2805; and references cited therein. For the synthetic equivalent of this transformation: Harada, T.; Shintani, T.; Oku, A. J. Am. Chem. Soc. 1995, 117, 12346.
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Duhamel, L.; Duhamel, P.; Launay, J. C.; Plaquevant, J. C. Bull. Soc. Chim. Fr. 1984, II-421. "Enantiomeric enrichment" described here is a thermodynamic process. The term "deracemization" includes kinetic processes as well as thermodynamie ones. See also ref 6, note 5. There are many papers which report kinetic asymmetric protonation. For a review: Fehr, C. Chimia 1991, 45, 253. Waldmann, H. Nachr. Chem. Tech. Lab. 1991, 39, 413. Fehr, C. Angew. Chem., Int. Ed. Engl. 1996, 35, 2566. Some recent works: Ishihara, K.; Kaneeda, M.; Yamamoto, H. J. Am. Chem. Soc. 1994, 116, 11179. Vedejs, E.; Lee, N. J. Am. Chem. Soc. 1995, 117, 891. Nakamura, Y.; Takeuchi, S.; Ohira, A.; Ohgo, Y. Tetrahedron Lett. 1996, 37, 2805; and references cited therein. For the synthetic equivalent of this transformation: Harada, T.; Shintani, T.; Oku, A. J. Am. Chem. Soc. 1995, 117, 12346.
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Duhamel, L.; Duhamel, P.; Launay, J. C.; Plaquevant, J. C. Bull. Soc. Chim. Fr. 1984, II-421. "Enantiomeric enrichment" described here is a thermodynamic process. The term "deracemization" includes kinetic processes as well as thermodynamie ones. See also ref 6, note 5. There are many papers which report kinetic asymmetric protonation. For a review: Fehr, C. Chimia 1991, 45, 253. Waldmann, H. Nachr. Chem. Tech. Lab. 1991, 39, 413. Fehr, C. Angew. Chem., Int. Ed. Engl. 1996, 35, 2566. Some recent works: Ishihara, K.; Kaneeda, M.; Yamamoto, H. J. Am. Chem. Soc. 1994, 116, 11179. Vedejs, E.; Lee, N. J. Am. Chem. Soc. 1995, 117, 891. Nakamura, Y.; Takeuchi, S.; Ohira, A.; Ohgo, Y. Tetrahedron Lett. 1996, 37, 2805; and references cited therein. For the synthetic equivalent of this transformation: Harada, T.; Shintani, T.; Oku, A. J. Am. Chem. Soc. 1995, 117, 12346.
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The following papers have recently appeared in the literature: Organometallic reagents: (a) Schlosser M.; Limat, D. J. Am. Chem. Soc. 1995, 117, 12342. (b) Basu, A.; Beak, P. J. Am. Chem. Soc. 1996, 118, 1575. (c) Park, Y. S.; Mark, L. B.; Beak, P. J. Am. Chem. Soc. 1996, 118, 3757. (d) Hoffmann, R. W.; Klute, W. Chem. Eur. J. 1996, 2, 694. (e) Basu, A.; Gallapher, D. J.; Beak, P. J. Org. Chem. 1996, 61, 5718.
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The following papers have recently appeared in the literature: Organometallic reagents: (a) Schlosser M.; Limat, D. J. Am. Chem. Soc. 1995, 117, 12342. (b) Basu, A.; Beak, P. J. Am. Chem. Soc. 1996, 118, 1575. (c) Park, Y. S.; Mark, L. B.; Beak, P. J. Am. Chem. Soc. 1996, 118, 3757. (d) Hoffmann, R. W.; Klute, W. Chem. Eur. J. 1996, 2, 694. (e) Basu, A.; Gallapher, D. J.; Beak, P. J. Org. Chem. 1996, 61, 5718.
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The following papers have recently appeared in the literature: Organometallic reagents: (a) Schlosser M.; Limat, D. J. Am. Chem. Soc. 1995, 117, 12342. (b) Basu, A.; Beak, P. J. Am. Chem. Soc. 1996, 118, 1575. (c) Park, Y. S.; Mark, L. B.; Beak, P. J. Am. Chem. Soc. 1996, 118, 3757. (d) Hoffmann, R. W.; Klute, W. Chem. Eur. J. 1996, 2, 694. (e) Basu, A.; Gallapher, D. J.; Beak, P. J. Org. Chem. 1996, 61, 5718.
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The following papers have recently appeared in the literature: Organometallic reagents: (a) Schlosser M.; Limat, D. J. Am. Chem. Soc. 1995, 117, 12342. (b) Basu, A.; Beak, P. J. Am. Chem. Soc. 1996, 118, 1575. (c) Park, Y. S.; Mark, L. B.; Beak, P. J. Am. Chem. Soc. 1996, 118, 3757. (d) Hoffmann, R. W.; Klute, W. Chem. Eur. J. 1996, 2, 694. (e) Basu, A.; Gallapher, D. J.; Beak, P. J. Org. Chem. 1996, 61, 5718.
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The following papers have recently appeared in the literature: Organometallic reagents: (a) Schlosser M.; Limat, D. J. Am. Chem. Soc. 1995, 117, 12342. (b) Basu, A.; Beak, P. J. Am. Chem. Soc. 1996, 118, 1575. (c) Park, Y. S.; Mark, L. B.; Beak, P. J. Am. Chem. Soc. 1996, 118, 3757. (d) Hoffmann, R. W.; Klute, W. Chem. Eur. J. 1996, 2, 694. (e) Basu, A.; Gallapher, D. J.; Beak, P. J. Org. Chem. 1996, 61, 5718.
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See also: (h) Krois D.; Lehner, H. J. Chem. Soc., Perkin Trans. 2 1989, 2085. Meyers reported chiral oxazoline-assisted deracemization of biaryl compounds: (i) Nelson T. D.; Meyers, A. I. Tetrahedron Lett. 1994, 35, 3259; (j) Nelson T. D.; Meyers, A. I. J. Org. Chem. 1994, 59, 2655; (k) Meyers A. I.; McKennon, M. J. Tetrahedron Lett. 1995, 36, 5849.
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See also: (h) Krois D.; Lehner, H. J. Chem. Soc., Perkin Trans. 2 1989, 2085. Meyers reported chiral oxazoline-assisted deracemization of biaryl compounds: (i) Nelson T. D.; Meyers, A. I. Tetrahedron Lett. 1994, 35, 3259; (j) Nelson T. D.; Meyers, A. I. J. Org. Chem. 1994, 59, 2655; (k) Meyers A. I.; McKennon, M. J. Tetrahedron Lett. 1995, 36, 5849.
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