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DOI: 10.1055/s-0029-1216635
Enantioselectivity Switch in Direct Asymmetric Aminoxylation Catalyzed by Binaphthyl-Based Chiral Secondary Amines
Publication History
Publication Date:
14 April 2009 (online)
Abstract
Binaphthyl-based amino acids (S)-1 and an aminosulfonamide (S)-2 were applied for direct asymmetric aminoxylation with nitrosobenzene. In the presence of either (S)-1 or (S)-2, the aminoxylation of aldehydes proceeded smoothly, and subsequent reduction with NaBH4 gave 2-aminoxyl alcohols with good to excellent enantioselectivities. In each case, binaphthyl-based chiral amine catalysts (S)-1 and (S)-2, which have the identical axial chirality, gave opposite enantiomers as the major product. This method represents a rare example of the direct asymmetric aminoxylation by a non-proline type catalyst.
Key words
enamine catalysis - asymmetric aminoxylation - organocatalyst
- For reviews, see:
-
1a
Adam W.Krebs O. Chem. Rev. 2003, 103: 4131 -
1b
Merino P.Tejero T. Angew. Chem. Int. Ed. 2004, 43: 2995 -
1c
Janey JM. Angew. Chem. Int. Ed. 2005, 44: 4292 -
1d
Yamamoto H.Momiyama N. Chem. Commun. 2005, 3514 -
1e
Yamamoto Y.Yamamoto H. Eur. J. Org. Chem. 2006, 2031 -
1f
Yamamoto H.Kawasaki M. Bull. Chem. Soc. Jpn. 2007, 80: 595 - 2
Momiyama N.Yamamoto H. J. Am. Chem. Soc. 2003, 125: 6038 - Representative papers:
-
3a
Zhong G. Angew. Chem. Int. Ed. 2003, 42: 4247 -
3b
Brown SP.Brochu MP.Sinz CJ.MacMillan DWC. J. Am. Chem. Soc. 2003, 125: 10808 -
3c
Hayashi Y.Yamaguchi J.Hibino K.Shoji M. Tetrahedron Lett. 2003, 44: 8293 -
3d
Bøgevig A.Sundén H.Córdova A. Angew. Chem. Int. Ed. 2004, 43: 1109 -
3e
Hayashi Y.Yamaguchi J.Sumiya T.Shoji M. Angew. Chem. Int. Ed. 2004, 43: 1112 -
3f
Yamamoto Y.Momiyama N.Yamamoto H. J. Am. Chem. Soc. 2004, 126: 5962 -
3g
Momiyama N.Torii H.Saito S.Yamamoto H. Proc. Natl. Acad. Sci. U.S.A. 2004, 101: 5374 -
3h
Hayashi H.Yamaguchi J.Sumiya T.Hibino K.Shoji M. J. Org. Chem. 2004, 69: 5966 -
3i
Wang W.Wang J.Li H.Liao L. Tetrahedron Lett. 2004, 45: 7235 -
3j
Ramachary DB.Barbas CF. Org. Lett. 2005, 7: 1577 -
3k
Huang K.Huang Z.-Z.Li X.-L. J. Org. Chem. 2006, 71: 8320 -
3l
Font D.Bastero A.Sayalero S.Jimeno C.Pericàs MA. Org. Lett. 2007, 9: 1943 - Representative papers on the asymmetric synthesis of natural products and chiral building blocks via organocatalytic aminoxylation:
-
4a
Enders D.Lenzen A.Müller M. Synthesis 2004, 1486 -
4b
Zhong G. Chem. Commun. 2004, 606 -
4c
Zhong G.Yu Y. Org. Lett. 2004, 6: 1637 -
4d
Kumarn S.Shaw DM.Longbottom DA.Ley SV. Org. Lett. 2005, 7: 4189 -
4e
Kumarn S.Shaw DM.Longbottom DA.Ley SV. Chem. Commun. 2006, 3211 -
4f
Kotkar SP.Sudalai A. Tetrahedron: Asymmetry 2006, 17: 1738 -
4g
Kim S.-G.Park T.-H.Kim BJ. Tetrahedron Lett. 2006, 47: 6369 -
4h
Kotkar SP.Sudalai A. Tetrahedron Lett. 2006, 47: 6813 -
4i
Talluri SK.Sudalai A. Tetrahedron 2007, 63: 9758 -
5a
Momiyama N.Yamamoto H. J. Am. Chem. Soc. 2005, 127: 1080 -
5b
Momiyama N.Yamamoto Y.Yamamoto H. J. Am. Chem. Soc. 2007, 129: 1190 - 6
Momiyama N.Yamamoto H. J. Am. Chem. Soc. 2004, 126: 5360 -
7a
Guo H.-M.Cheng L.Cun L.-F.Gong L.-Z.Mi A.-Q.Jiang Y.-Z. Chem. Commun. 2006, 429 -
7b
Kano T.Ueda M.Takai J.Maruoka K. J. Am. Chem. Soc. 2006, 128: 6046 -
7c
Kim S.-G.Park T.-H. Tetrahedron Lett. 2006, 47: 9067 -
7d
Palomo C.Vera S.Velilla I.Mielgo A.Gómez-Bengoa E. Angew. Chem. Int. Ed. 2007, 46: 8054 - 8
López-Cantarero CJ.Cid MB.Poulsen TB.Bella M.García Ruano JL.Jørgensen KA. J. Org. Chem. 2007, 72: 7062 -
9a
Yamamoto Y.Yamamoto H. J. Am. Chem. Soc. 2004, 126: 4128 -
9b
Yamamoto Y.Yamamoto H. Angew. Chem. Int. Ed. 2005, 44: 7082 -
9c
Jana CK.Studer A. Angew. Chem. Int. Ed. 2007, 46: 6542 -
10a
Kano T.Takai J.Tokuda O.Maruoka K. Angew. Chem. Int. Ed. 2005, 44: 3055 -
10b
Kano T.Tokuda O.Takai J.Maruoka K. Chem. Asian J. 2006, 1: 210 - 11
Kano T.Yamaguchi Y.Maruoka K. Angew. Chem. Int. Ed. 2007, 46: 1738 -
12a
Kano T.Yamaguchi Y.Tokuda O.Maruoka K. J. Am. Chem. Soc. 2005, 127: 16408 -
12b
Kano T.Yamaguchi Y.Maruoka K. Angew. Chem. Int. Ed. 2009, 48: 1838 -
13a
Kano T.Yamamoto A.Mii H.Takai J.Shirakawa S.Maruoka K. Chem. Lett. 2008, 37: 250 -
13b
Kano T.Yamamoto A.Maruoka K. Tetrahedron Lett. 2008, 49: 5369 - 14
Ooi T.Kameda M.Maruoka K. J. Am. Chem. Soc. 2003, 125: 5139
References
CCDC-710886 contains the supplementary crystallographic data of (S)-2˙HCl salt for this paper. These data can be obtained free of charge from The Cambridge Crystallographic Data Centre via www.ccdc.cam.ac.uk/data_request/cif.