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Volumn 131, Issue 14, 2009, Pages 5331-5343

Controlling axial conformation in 2-Arylpyridines and 1-Arylisoquinolines: Application to the asymmetric synthesis of QUINAP by dynamic thermodynamic resolution

Author keywords

[No Author keywords available]

Indexed keywords

ASYMMETRIC SYNTHESIS; ATROPISOMERS; BIARYLS; BIPHENYL COMPOUNDS; CD SPECTRA; CONFORMATIONAL PREFERENCES; DYNAMIC RESOLUTION; THERMODYNAMIC CONTROL;

EID: 67749093252     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja900722q     Document Type: Article
Times cited : (96)

References (90)
  • 59
    • 67949101115 scopus 로고    scopus 로고
    • Concurrently with our work, Knochel reported the use of sulfoxides for the synthesis of QUINAP by classical resolution; see ref 19
    • Concurrently with our work, Knochel reported the use of sulfoxides for the synthesis of QUINAP by classical resolution; see ref 19.
  • 60
    • 67949120960 scopus 로고    scopus 로고
    • The X-day crystallographic data for (R,P)-13 has been deposited with the Cambridge Crystallographic Database, deposition number 716802.
    • The X-day crystallographic data for (R,P)-13 has been deposited with the Cambridge Crystallographic Database, deposition number 716802.
  • 62
    • 67949111679 scopus 로고    scopus 로고
    • Gaussian Inc, Wallingford, CT
    • Frisch, M. J.; et al. Gaussian 03, revision C.02; Gaussian Inc.: Wallingford, CT, 2004.
    • (2004) Gaussian 03, revision , Issue.C.02
    • Frisch, M.J.1
  • 82
    • 34548787765 scopus 로고    scopus 로고
    • Mori, T.; Grimme, S.; Inoue, Y. J. Org. Chem. 2007, 72, 6998-7010. (I) Mori, T.; Inoue, Y.; Grimme, S. J. Phys. Chem. A. 2007, 111, 7955-8006.
    • (h) Mori, T.; Grimme, S.; Inoue, Y. J. Org. Chem. 2007, 72, 6998-7010. (I) Mori, T.; Inoue, Y.; Grimme, S. J. Phys. Chem. A. 2007, 111, 7955-8006.
  • 83
    • 67949105663 scopus 로고    scopus 로고
    • http://www.ipc.uni-karlsruhe.de/tch/tch1/TBL/tbl.html
  • 84
    • 18044376803 scopus 로고    scopus 로고
    • For the use of such molecular brakes, see: a
    • For the use of such "molecular brakes", see: (a) Kottas, G. S.; Clarke, L. I.; Horinek, D.; Michl, J. Chem. Rev. 2005, 105, 1281-1376.
    • (2005) Chem. Rev , vol.105 , pp. 1281-1376
    • Kottas, G.S.1    Clarke, L.I.2    Horinek, D.3    Michl, J.4
  • 88
    • 0034647971 scopus 로고    scopus 로고
    • For the asymmetric synthesis of aryl-pyridines using a sulfinyl group to induce asymmetry under kinetic control, see ref 23. For other methods, see: (a) Kakiuchi, F, Le Gendre, P, Yamada, A, Ohtaki, H, Murai, S. Tetrahedron Asymmetry 2000, 11, 2647
    • For the asymmetric synthesis of aryl-pyridines using a sulfinyl group to induce asymmetry under kinetic control, see ref 23. For other methods, see: (a) Kakiuchi, F.; Le Gendre, P.; Yamada, A.; Ohtaki, H.; Murai, S. Tetrahedron Asymmetry 2000, 11, 2647.
  • 90
    • 67949123862 scopus 로고    scopus 로고
    • It is in fact possible to re-isolate and recycle (by further equilibration) the minor, less stable diastereoisomer of 13 in low yield (ca 12%) after this equilibration: yields are limited by the instability of 13 on silica. Higher yields were obtained by Knochel et al. (ref 19) employing Florisil, but our equilibration method is particularly suitable for use on large scale, where the expense of Florisil becomes prohibitive.
    • It is in fact possible to re-isolate and recycle (by further equilibration) the minor, less stable diastereoisomer of 13 in low yield (ca 12%) after this equilibration: yields are limited by the instability of 13 on silica. Higher yields were obtained by Knochel et al. (ref 19) employing Florisil, but our equilibration method is particularly suitable for use on large scale, where the expense of Florisil becomes prohibitive.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.