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Volumn 124, Issue 50, 2002, Pages 14850-14851

Catalyzed asymmetric aryl transfer reactions to aldehydes with boronic acids as aryl source

Author keywords

[No Author keywords available]

Indexed keywords

ALDEHYDE DERIVATIVE; BORONIC ACID DERIVATIVE;

EID: 0037132590     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja028518l     Document Type: Article
Times cited : (272)

References (41)
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    • For an enantioselective Rh-catalyzed aryl transfer reaction using phenyl-boronic acid as aryl source (41% ee), see: Sakai, M.; Ueda, M.; Miyaura, N. Angew. Chem., Int. Ed. 1998, 37, 3279.
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    • note
    • Presumably, the Lewis-acidic achiral metal salts, which are formed during the transmetalation, catalyze the aryl transfer as well and afford racemic products. By this parallel reaction the overall enantioselectivity of the process is reduced.
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    • For B-to-Zn exchange reactions involving alkenylboranes, see: (a) Srebnik, M. Tetrahedron Lett. 1991, 32, 2449. (b) Oppolzer, W.; Radinov, R. N. Helv. Chim. Acta 1992, 75, 170. (c) Oppolzer, W.; Radinov, R. N. J. Am. Chem. Soc. 1993, 115, 1593. (d) Langer, F.; Schwink, L.; Devasagayaraj, A.; Chavant, P.-Y.; Knochel, P. J. Org. Chem. 1996, 61, 8229. (e) Boudier, A.; Bromm, L. O.; Lotz, M.; Knochel, P. Angew. Chem., Int. Ed. 2000, 39, 4414. (f) Dahmen, S.; Bräse, S. Org. Lett. 2001, 3, 4119.
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    • For B-to-Zn exchange reactions involving alkenylboranes, see: (a) Srebnik, M. Tetrahedron Lett. 1991, 32, 2449. (b) Oppolzer, W.; Radinov, R. N. Helv. Chim. Acta 1992, 75, 170. (c) Oppolzer, W.; Radinov, R. N. J. Am. Chem. Soc. 1993, 115, 1593. (d) Langer, F.; Schwink, L.; Devasagayaraj, A.; Chavant, P.-Y.; Knochel, P. J. Org. Chem. 1996, 61, 8229. (e) Boudier, A.; Bromm, L. O.; Lotz, M.; Knochel, P. Angew. Chem., Int. Ed. 2000, 39, 4414. (f) Dahmen, S.; Bräse, S. Org. Lett. 2001, 3, 4119.
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    • For B-to-Zn exchange reactions involving alkenylboranes, see: (a) Srebnik, M. Tetrahedron Lett. 1991, 32, 2449. (b) Oppolzer, W.; Radinov, R. N. Helv. Chim. Acta 1992, 75, 170. (c) Oppolzer, W.; Radinov, R. N. J. Am. Chem. Soc. 1993, 115, 1593. (d) Langer, F.; Schwink, L.; Devasagayaraj, A.; Chavant, P.-Y.; Knochel, P. J. Org. Chem. 1996, 61, 8229. (e) Boudier, A.; Bromm, L. O.; Lotz, M.; Knochel, P. Angew. Chem., Int. Ed. 2000, 39, 4414. (f) Dahmen, S.; Bräse, S. Org. Lett. 2001, 3, 4119.
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  • 39
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    • For B-to-Zn exchange reactions involving alkenylboranes, see: (a) Srebnik, M. Tetrahedron Lett. 1991, 32, 2449. (b) Oppolzer, W.; Radinov, R. N. Helv. Chim. Acta 1992, 75, 170. (c) Oppolzer, W.; Radinov, R. N. J. Am. Chem. Soc. 1993, 115, 1593. (d) Langer, F.; Schwink, L.; Devasagayaraj, A.; Chavant, P.-Y.; Knochel, P. J. Org. Chem. 1996, 61, 8229. (e) Boudier, A.; Bromm, L. O.; Lotz, M.; Knochel, P. Angew. Chem., Int. Ed. 2000, 39, 4414. (f) Dahmen, S.; Bräse, S. Org. Lett. 2001, 3, 4119.
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    • note
    • 5 the diarylmethanols are obtained in analytically pure form after column chromatography (silica gel, pentane:diethyl ether = 85:15).


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