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Volumn 71, Issue 17, 2006, Pages 6686-6689

De novo asymmetric syntheses of muricatacin and its analogues via dihydroxylation of dienoates

Author keywords

[No Author keywords available]

Indexed keywords

DIENOATES; DIHYDROXYLATION; ENANTIOMERS; MURICATACIN; STEREOSELECTIVE SYNTHESIS;

EID: 33747410110     PISSN: 00223263     EISSN: None     Source Type: Journal    
DOI: 10.1021/jo061057s     Document Type: Article
Times cited : (39)

References (37)
  • 28
    • 4444276636 scopus 로고
    • To control the double selectivity in the oxidation, we chose to take advantage of both the differing double bond reactivity in dienoates and the Sharpless reagent systems preference of trans-double bonds. See ref 5 as well as (a) Kolb, H. C.; VanNieuwenhze, M. S.; Sharpless, K. B. Chem. Rev. 1994, 94, 2483-2547.
    • (1994) Chem. Rev. , vol.94 , pp. 2483-2547
    • Kolb, H.C.1    Vannieuwenhze, M.S.2    Sharpless, K.B.3
  • 30
    • 33747444703 scopus 로고    scopus 로고
    • note
    • Previously, Sharpless has shown that muricatacin can be prepared by the asymmetric dihydroxylation of a partially saturated 6 ((4E)-ethyl heptadeca-4-enoate), see ref 4o. Because we were also interested in access to an unsaturated form of muricatacin (5), we decided to pursue this dienoate oxidation approach.
  • 33
    • 33747433819 scopus 로고    scopus 로고
    • note
    • All enantiomeric excesses were determined by chiral HPLC (for details see Supporting Information).
  • 34
    • 33747384323 scopus 로고    scopus 로고
    • note
    • 3)), see ref 4b and 4n.
  • 35
    • 33747434898 scopus 로고    scopus 로고
    • note
    • Presented in this text are the experimental procedures for the preparation of compounds 9-12. Complete experimental procedures and spectral data for all compounds are presented in the Supporting Information.
  • 36
    • 33747418614 scopus 로고    scopus 로고
    • note
    • While we were able to generate a molecular ion for dienoate 6 using electron impact ionization, we were unable to generate a molecular ion using electrospray ionization techniques, thus we were unable to obtain any high-resolution mass data.
  • 37
    • 33747416794 scopus 로고    scopus 로고
    • note
    • High-resolution MS data was not obtained for the enantiomers of compounds 4 and 5.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.