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Volumn 58, Issue 38, 2002, Pages 7653-7661

Novel and facile synthesis of β-(4-azuleno[1,2-b]thienyl)- and β-(4-azuleno[2,1-b]thienyl)-α,β-unsaturated ketones by intramolecular tropylium ion-mediated furan ring-opening reaction

Author keywords

, unsaturated ketone; Azulene; Azuleno 1,2 b thiophene; Azuleno 2,1 b thiophene; Furan ring opening reaction; Tropylium ion

Indexed keywords

DICHLOROMETHANE; FURAN; KETONE DERIVATIVE; THIOPHENE DERIVATIVE;

EID: 0037119753     PISSN: 00404020     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0040-4020(02)00869-4     Document Type: Article
Times cited : (16)

References (38)
  • 1
    • 0003958840 scopus 로고
    • Amsterdam: Elsevier
    • Some of the review of the fundamental chemistry of azulenes are follows: (a) Lloyd D. Non-benzenoid Conjugated Carbocyclic Compounds. 1984;Elsevier, Amsterdam. p 352 (b) Heilbronner E. Non-benzenoid Aromatic Compounds. 1959;Interscience, New York. Chapter V (c) Hafner K. Angew. Chem. 70:1958;419.
    • (1984) Non-benzenoid Conjugated Carbocyclic Compounds , pp. 352
    • Lloyd, D.1
  • 2
    • 0004118920 scopus 로고
    • New York: Interscience Chapter V
    • Some of the review of the fundamental chemistry of azulenes are follows: (a) Lloyd D. Non-benzenoid Conjugated Carbocyclic Compounds. 1984;Elsevier, Amsterdam. p 352 (b) Heilbronner E. Non-benzenoid Aromatic Compounds. 1959;Interscience, New York. Chapter V (c) Hafner K. Angew. Chem. 70:1958;419.
    • (1959) Non-benzenoid Aromatic Compounds
    • Heilbronner, E.1
  • 3
    • 0000582306 scopus 로고
    • Some of the review of the fundamental chemistry of azulenes are follows: (a) Lloyd D. Non-benzenoid Conjugated Carbocyclic Compounds. 1984;Elsevier, Amsterdam. p 352 (b) Heilbronner E. Non-benzenoid Aromatic Compounds. 1959;Interscience, New York. Chapter V (c) Hafner K. Angew. Chem. 70:1958;419.
    • (1958) Angew. Chem. , vol.70 , pp. 419
    • Hafner, K.1
  • 23
    • 0026699017 scopus 로고
    • (a) Mitchell T.N. Synthesis. 1992;803 (b) Kalinin V.N. Synthesis. 1992;413.
    • (1992) Synthesis , pp. 803
    • Mitchell, T.N.1
  • 24
    • 0026545386 scopus 로고
    • (b) Kalinin V.N. Synthesis. 1992;413 (c) Stille J.K. Angew. Chem. Int. Ed. Engl. 25:1986;508.
    • (1992) Synthesis , pp. 413
    • Kalinin, V.N.1
  • 33
    • 0005177270 scopus 로고    scopus 로고
    • Compound 1 can be also obtained without isolation of the corresponding tropylium ion derivatives 3. Namely, the isomeric mixture 7′ was treated with an equimolar amount of trityl tetrafluoroborate in dichloromethane at 0°C, followed by dilution with dichloromethane, and the resulting solution was refluxed for several hours
    • Compound 1 can be also obtained without isolation of the corresponding tropylium ion derivatives 3. Namely, the isomeric mixture 7′ was treated with an equimolar amount of trityl tetrafluoroborate in dichloromethane at 0°C, followed by dilution with dichloromethane, and the resulting solution was refluxed for several hours.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.