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Volumn 68, Issue 11, 2003, Pages 4286-4292

Development of a [3+3] cycloaddition strategy toward functionalized piperidines

Author keywords

[No Author keywords available]

Indexed keywords

COMPLEXATION; METHANE; SUBSTITUTION REACTIONS;

EID: 0038441546     PISSN: 00223263     EISSN: None     Source Type: Journal    
DOI: 10.1021/jo030002c     Document Type: Article
Times cited : (83)

References (37)
  • 10
    • 0000048258 scopus 로고
    • Trost, B. M., Fleming, I., Eds.; Pergamon: Oxford, UK
    • For a review on [4+2] cycloaddition processes see: Oppolzer, W. In Comprehesive Organic Synthesis; Trost, B. M., Fleming, I., Eds.; Pergamon: Oxford, UK, 1991; Vol. 5, p 315.
    • (1991) Comprehesive Organic Synthesis , vol.5 , pp. 315
    • Oppolzer, W.1
  • 29
    • 0037756368 scopus 로고    scopus 로고
    • note
    • 3; however, the reaction was capricious due to problems associated with precipitation of Pd-metal.
  • 31
    • 0038432849 scopus 로고    scopus 로고
    • note
    • As judged by chiral HPLC analysis of 10 and 14. The enantiomeric purity of compounds 8, 12, and 18 was inferred from these data.
  • 33
    • 0029989537 scopus 로고    scopus 로고
    • Aziridines bearing SES, Boc, Cbz, and Dpp N-substituents do not undergo cycloaddition and are recovered from the reaction mixture unchanged. In contrast, the more highly activated Ns-protected aziridines furnish a complex mixture of products possibly because of competing addition of the Pd-TMM complex to the aromatic ring: Holzapfel, C. W.; van der Merwe, T. Tetrahedron Lett. 1996, 37, 2307.
    • (1996) Tetrahedron Lett. , vol.37 , pp. 2307
    • Holzapfel, C.W.1    Van der Merwe, T.2
  • 37
    • 0029891381 scopus 로고    scopus 로고
    • Only the major diastereomer is shown in each case in Scheme 7. The stereochemical assignment of cis- and trans-46 was not carried out due to the poor levels of selectivity observed in this case. The major epoxide diastereomer 43a was assigned based on the characteristic long-range coupling observed with one of the epoxide CH2 protons and a ring methylene proton (J = 1.5 Hz): Vedejs, E.; Dent, W. H., III; Kendall, J. T.; Oliver, P. A. J. Am. Chem. Soc. 1996, 118, 3556. Assignment of 44 is based on 2D ROESY, which is provided in the Supporting Information. Assignment of the major diastereomer of 45 is based on the coupling constants of the protons at C-5 and C-6, see Supporting Information for more details.
    • (1996) J. Am. Chem. Soc. , vol.118 , pp. 3556
    • Vedejs, E.1    Dent W.H. III2    Kendall, J.T.3    Oliver, P.A.4


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.