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Volumn 2004, Issue 7, 2004, Pages 253-265

The intramolecular aldol condensation of 3-oxocyclohexaneacetaldehydes: A useful tool in the synthesis of natural products

Author keywords

3 oxocyclohexaneacetaldehydes; Intramolecular aldol condensation; Preparation

Indexed keywords

3 OXOCYCLOHEXANEACETALDEHYDE DERIVATIVE; 6 HYDROXYBICYCLO[2.2.2]OCTAN 2 ONE DERIVATIVE; ALDEHYDE DERIVATIVE; KETONE DERIVATIVE; NATURAL PRODUCT; UNCLASSIFIED DRUG;

EID: 2942659507     PISSN: 14246376     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Review
Times cited : (6)

References (45)
  • 1
    • 2942658900 scopus 로고    scopus 로고
    • note
    • Only 6-hydroxybicyclo[2.2.2]octan-2-ones obtained by intramolecular aldol condensation of a 3-oxocyclohexaneacetaldehyde are taken into account.
  • 22
    • 2942674102 scopus 로고    scopus 로고
    • note
    • 6-hydroxybicyclo[2.2.2]octan-2-one numbering is used throughout.
  • 23
    • 2942671897 scopus 로고    scopus 로고
    • note
    • 2-cyclohexen-1-one numbering is used throughout.
  • 24
    • 2942695540 scopus 로고    scopus 로고
    • note
    • As far as stereochemistry of C(6)-OH group in ketols is concerned, in Scheme 2 only the major epimer, if any and when clearly indicated by the Authors, is reported.
  • 29
    • 2942667502 scopus 로고    scopus 로고
    • ref. 2e
    • a) ref. 2e;
  • 34
    • 2942632596 scopus 로고    scopus 로고
    • note
    • The formation, in milder experimental conditions (THF/1N HCl 1.25/1, r. t., 3h) than those usually reported for acid catalyzed intramolecular aldol condensation, of an unsaturated hemiacetal, resulting from the addition of the enolized formyl group to the ketone carbonyl group, has been described.
  • 37
    • 2942643740 scopus 로고    scopus 로고
    • In a recent work it was pointed out that 6-exo-hydroxybicyclo[2.2.2]octan-2-one self-assembles in the solid state through intermolecular hydrogen bonds to form a supramolecular helix: Sarvary, I.; Johansson, M. H.; Frejd, T. Cryst. Eng. Comm. 2002, 4(26), 146.
    • (2002) Cryst. Eng. Comm. , vol.4 , Issue.26 , pp. 146
    • Sarvary, I.1    Johansson, M.H.2    Frejd, T.3
  • 39
    • 2942693381 scopus 로고    scopus 로고
    • note
    • A referee is pointing out that the 0.6 kcal/mol energy difference between theendo and the exo isomer corresponds to the A value for the OH group.
  • 41
    • 2942671898 scopus 로고    scopus 로고
    • note
    • Under the adopted thioacetalization reaction conditions no epimerization occurs.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.