메뉴 건너뛰기




Volumn 66, Issue 1, 2005, Pages 31-37

Enantioselective synthesis of (R)-1-azaspiro-[4.4]nonane-2,6-dione ethylene ketal, key chiral intermediate in the elaboration of (-)-cephalotaxine

Author keywords

[No Author keywords available]

Indexed keywords


EID: 33744489402     PISSN: 03855414     EISSN: None     Source Type: Journal    
DOI: 10.3987/COM-05-S(K)3     Document Type: Article
Times cited : (6)

References (43)
  • 1
    • 77956701129 scopus 로고    scopus 로고
    • For an hemisynthesis of enantiopure homoharringtonine, see. Manske F.M. (Ed), Academic Press, New York
    • For an hemisynthesis of enantiopure homoharringtonine, see. Miah Jal M.A., Hudlicky T., and Reed J.W. In: Manske F.M. (Ed). The Alkaloids Vol. 51 (1998), Academic Press, New York 199-269
    • (1998) The Alkaloids , vol.51 , pp. 199-269
    • Miah Jal, M.A.1    Hudlicky, T.2    Reed, J.W.3
  • 5
    • 0141520491 scopus 로고    scopus 로고
    • Total syntheses of (±)-cephalotaxine:. and references cited
    • Total syntheses of (±)-cephalotaxine:. Li W.-D.Z., and Wang Y.-Q. and references cited. Org. Lett. 5 (2003) 2931
    • (2003) Org. Lett. , vol.5 , pp. 2931
    • Li, W.-D.Z.1    Wang, Y.-Q.2
  • 6
    • 17444380057 scopus 로고    scopus 로고
    • Recent formal synthesis of (±)-cephalotaxine:
    • Recent formal synthesis of (±)-cephalotaxine:. Li W.-D.Z., and Ma B.-C. J. Org. Chem. 70 (2005) 3277
    • (2005) J. Org. Chem. , vol.70 , pp. 3277
    • Li, W.-D.Z.1    Ma, B.-C.2
  • 16
    • 0000856502 scopus 로고
    • Trivandrum, India. For recent developments, see:. Pandalai S.G. (Ed)
    • Trivandrum, India. d'Angelo J., Cavé C., Desmaële D., and Dumas F. For recent developments, see:. In: Pandalai S.G. (Ed). Trends in Organic Synthesis Vol. 4 (1993) 555-615
    • (1993) Trends in Organic Synthesis , vol.4 , pp. 555-615
    • d'Angelo, J.1    Cavé, C.2    Desmaële, D.3    Dumas, F.4
  • 21
    • 33744497473 scopus 로고    scopus 로고
    • Ref. lc of the present paper.
  • 31
    • 0025728522 scopus 로고
    • 3. For a further investigation of this reaction, see:
    • 3. Guingant A., and Hammami H. For a further investigation of this reaction, see:. Tetrahedron: Asymmetry 2 (1991) 411
    • (1991) Tetrahedron: Asymmetry , vol.2 , pp. 411
    • Guingant, A.1    Hammami, H.2
  • 33
    • 33845556313 scopus 로고
    • However, when the reduction of 10 was performed at 20°C, a complex mixture of products was obtained
    • However, when the reduction of 10 was performed at 20°C, a complex mixture of products was obtained. Gemal A.L., and Luche J.L. J. Am. Chem. Soc. 103 (1981) 5454
    • (1981) J. Am. Chem. Soc. , vol.103 , pp. 5454
    • Gemal, A.L.1    Luche, J.L.2
  • 37
    • 33744481194 scopus 로고    scopus 로고
    • Value estimated on molecular model.
  • 38
    • 0347151381 scopus 로고
    • Stereoselective Synthesis
    • Eliel E.L., and Wilen S.H. (Eds), Wiley, New York
    • Stereoselective Synthesis. In: Eliel E.L., and Wilen S.H. (Eds). Stereochemistry of Organic Compounds (1994), Wiley, New York 835-890
    • (1994) Stereochemistry of Organic Compounds , pp. 835-890
  • 41
    • 33744482478 scopus 로고    scopus 로고
    • (R)-8 (99% ee) is commercially available at low cost: 73.7per 100 g (0.825 mole) [Supplier: Acrós Organics, 2005].
  • 42
    • 33744479623 scopus 로고    scopus 로고
    • Preparation of 3 according to ref. 5b required tedious separation of diastereomers by HPLC.
  • 43
    • 33744459397 scopus 로고    scopus 로고
    • (S)-1-(1-naphthyl)ethylamine, the chiral inducer required for the synthesis of (S)-4 according to ref. 5e, is a very expensive chemical: 43.9per 1 g (0.0058 mole) [Supplier: Acrós Organics, 2005]. Furthermore, this inducer cannot be recovered, since further immolated through hydrogenolysis.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.