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Synlett 2007(16): 2574-2578
DOI: 10.1055/s-2007-986630
DOI: 10.1055/s-2007-986630
LETTER
© Georg Thieme Verlag Stuttgart · New York
Hydroxymethylpyridine Catalysts for the Enantioselective Alkynylation of Aldehydes
Weitere Informationen
Received
20 March 2007
Publikationsdatum:
28. August 2007 (online)
Publikationsverlauf
Publikationsdatum:
28. August 2007 (online)
Abstract
Chiral 2-hydroxymethylpyridines based on fenchol and menthol were evaluated as catalysts for the enantioselective addition of terminal alkynes to aldehydes. With one of the fenchol-based ligands, the operationally simple protocol gave propargylic alcohols with excellent yields and up to 85% ee for various aldehyde and alkyne derivatives.
Keywords
alkynes - propargylic alcohols - pyridines - asymmetric catalysis - zinc
- For reviews on alkyne additions to carbonyl compounds, see:
-
1a
Frantz DE.Fässler R.Tomooka CS.Carreira EM. Acc. Chem. Res. 2000, 33: 373 -
1b
Pu L. Tetrahedron 2003, 59: 9873 -
1c
Cozzi PG.Hilgraf R.Zimmermann N. Eur. J. Org. Chem. 2004, 4095 -
1d
Aschwanden PA.Carreira EM. In Acetylene Chemistry: Chemistry, Biology, and Material ScienceDiederich F.Stang PJ.Tykwinski RR. Wiley-VCH; Weinheim: 2005. p.101 -
2a
Modern Acetylene Chemistry
Stang PJ.Diederich F. VCH; Weinheim: 1995. -
2b
Marshall JA.Wang XJ. J. Org. Chem. 1992, 57: 1242 -
2c
Corey EJ.Cimprich KA. J. Am. Chem. Soc. 1994, 116: 3151 -
2d
Roush WR.Sciotti RJ. J. Am. Chem. Soc. 1994, 116: 6457 -
2e
Myers AG.Zheng B. J. Am. Chem. Soc. 1996, 118: 4492 -
2f
Trost BM.Krische MJ. J. Am. Chem. Soc. 1999, 121: 6131 - For reviews on organozinc chemistry, see:
-
3a
Knochel P.Calaza MI.Hupe E. In Metal-Catalyzed Cross-Coupling Reactions 2nd ed.:de Meijere A.Diederich F. Wiley-VCH; Weinheim: 2004. p.619 -
3b
Knochel P.Millot N.Rodriguez A.Tucker CE. Org. React. 2001, 58: 417 -
3c
Jacobi von Wangelin A.Frederiksen MU. In Transition Metals for Organic Synthesis 2nd ed.:Beller M.Bolm C. Wiley-VCH; Weinheim: 2004. p.519 - 4
Kamble MJ.Singh VK. Tetrahedron Lett. 2003, 44: 5347 -
5a
Frantz DE.Fässler R.Carreira EM. J. Am. Chem. Soc. 2000, 122: 1806 -
5b
Anand NK.Carreira EM. J. Am. Chem. Soc. 2001, 123: 9687 -
6a
Watts CC.Thoniyot P.Hirayama LC.Romano T.Singaram B. Tetrahedron: Asymmetry 2005, 16: 1829 -
6b
Yamashita M.Yamadam K.Omioka K. Adv. Synth. Catal. 2005, 347: 1649 -
6c
Emmerson DPG.Hems WP.Davis BJ. Org. Lett. 2006, 8: 207 - 7
Li M.Zhu X.-Z.Yuan K.Cao B.-X.Hou X.-L. Tetrahedron: Asymmetry 2004, 15: 219 - 8
Dahmen S. Org. Lett. 2004, 6: 2113 -
9a
Braga AL.Appelt HR.Silveria CC.Wessjohann LA.Schneider PH. Tetrahedron 2002, 58: 10413 -
9b
Kang Y.Wang R.Liu L.Da C.Yan W.Xu Z. Tetrahedron Lett. 2005, 46: 863 - 10
Han Z.Wang R.Zhou Y.Liu L. Eur. J. Org. Chem. 2005, 934 -
11a
Fang T.Du D.-M.Lu SF.Xu J. Org. Lett. 2005, 7: 2081 -
11b
Li X.Lu G.Kwok WH.Chan ASC. J. Am. Chem. Soc. 2002, 124: 12636 - 12
Blay G.Fernández I.Marco-Aleixandre A.Pedro JR. J. Org. Chem. 2006, 71: 6674 -
13a
Wang Q.Chen S.-Y.Yua X.-Q.Pu L. Tetrahedron 2007, 63: 4422 -
13b
Lu G.Li X.Chen G.Chan WL.Chan ASC. Tetrahedron: Asymmetry 2003, 14: 449 -
14a
Trost BM. J. Am. Chem. Soc. 2000, 122: 12003 -
14b
Trost BM.Ito H.Silcoff ER. J. Am. Chem. Soc. 2001, 123: 3367 -
14c
Trost BM.Mino T. J. Am. Chem. Soc. 2003, 125: 2410 -
14d
Trost BM.Fettes A.Shireman BT. J. Am. Chem. Soc. 2004, 126: 2660 -
14e
Trost BM.Shin S.Sclafani JA. J. Am. Chem. Soc. 2005, 127: 8602 -
14f
Trost BM.Yeh VSC. Angew. Chem. Int. Ed. 2002, 41: 861 ; Angew. Chem. 2002, 114, 889 -
14g
Trost BM.Weiss AH.Jacobi von Wangelin A. J. Am. Chem. Soc. 2006, 128: 8 -
15a
Bolm C.Schlingloff G.Harms K. Chem. Ber. 1992, 125: 1191 -
15b
Kwong H.-L.Lee W.-S. Tetrahedron: Asymmetry 1999, 10: 3791 -
15c
Bolm C.Ewald M.Zehnder M.Neuburger MA. Chem. Ber. 1992, 125: 453 -
15d For the preparation of related chiral hydroxymethyl-pyridines, see:
Bolm C.Ewald M.Felder M.Schlingloff G. Chem. Ber. 1992, 125: 1169 - 16 For precedent reference regarding SAR calculations of chiral fenchone-based organozinc catalysts, see:
Goldfuss B.Steigelmann M. J. Mol. Model. 2000, 6: 166 - For precedents on the asymmetric addition to aldehydes using chiral fenchone-based ligands, see:
-
17a
Goldfuss B.Steigelmann M.Khan SI.Houk KN. J. Org. Chem. 2000, 65: 77 -
17b
Genov M.Kostova K.Dimitrov V. Tetrahedron: Asymmetry 1997, 8: 1869 - 18
Herrmann WA.Haider JJ.Fridgen J.Lobmaier GM.Spiegler M. J. Organomet. Chem. 2000, 603: 69 -
19a
El Sheikh S.Schmalz H.-G. Curr. Opin. Drug Discovery Dev. 2004, 7: 882 -
19b
Elmas S.Schmalz H.-G. Diploma Thesis Universität zu Köln; Germany: 2005. -
19c
Goto, S.; Velder, J.; El Sheikh, S.; Sakamoto, Y.; Mitani, M.; Elmas, S.; Adler, A.; Becker, A.; Neudörfl, J.-M.; Schmalz, H.-G.; manuscript in preparation.
- 20 For a concise review on chiral camphor-based pyridines, see:
Chelucci G. Chem. Soc. Rev. 2006, 35: 1230 - 21 Cozzi and coworkers reported on the ligand-free preformation of alkynylzinc species within 30 min:
Cozzi PG.Rudolph J.Bolm C.Norrby P.-O.Tomasini C. J. Org. Chem. 2005, 70: 5733 - 22
Noyori R.Kitamura M. Angew. Chem. Int. Ed. 2002, 30: 49 ; Angew. Chem. 1991, 103, 34 - 23
Buckle DR.Fenwick AE. J. Chem. Soc., Perkin Trans. 1 1989, 3: 477