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Volumn 461-462, Issue , 1999, Pages 359-377

Tropone versus tropothione. Theoretical and experimental analyses of cycloadditions with maleic anhydride

Author keywords

Ab initio calculation; Cycloaddition; Maleic anhydride; Tropone; Tropothione

Indexed keywords

MALEIC ANHYDRIDE; TROPONE DERIVATIVE;

EID: 0033515421     PISSN: 01661280     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0166-1280(98)00450-3     Document Type: Article
Times cited : (6)

References (45)
  • 27
    • 0009590610 scopus 로고    scopus 로고
    • Nuclear Overhauser enhancements between H(2) and H(3) and between H(3) and H(3a) were observed in the 2D NOESY spectrum in the cycloadduct 5. This result shows that they are disposed in cis-cis arrangements, i.e. the endo configuration in 5
    • Nuclear Overhauser enhancements between H(2) and H(3) and between H(3) and H(3a) were observed in the 2D NOESY spectrum in the cycloadduct 5. This result shows that they are disposed in cis-cis arrangements, i.e. the endo configuration in 5.
  • 28
    • 0009578104 scopus 로고    scopus 로고
    • 1H COLOC [35,36] with an aid of composite decoupling (CPD) and gated decoupling
    • 1H COLOC [35,36] with an aid of composite decoupling (CPD) and gated decoupling.
  • 29
    • 0009653333 scopus 로고
    • Modern NMR techniques for chemistry research
    • in: J.E. Baldwin (Ed.), Pergamon, Oxford
    • A.E. Derome, in: J.E. Baldwin (Ed.), Modern NMR Techniques for Chemistry Research, Organic Chemistry Series 6, Pergamon, Oxford, 1987.
    • (1987) Organic Chemistry Series 6
    • Derome, A.E.1
  • 37
    • 0009606824 scopus 로고    scopus 로고
    • 13C-NMR spectra of all the products obtained resonate in individual carbons. Also, there are four olefinic carbons (doublet), four methine carbons (doublet) and one conjugated carbonyl one in addition to two carbonyl carbons derived from the MA group. The product 4 must therefore be a [4+2]-type cycloadduct between 1 and MA
    • 13C-NMR spectra of all the products obtained resonate in individual carbons. Also, there are four olefinic carbons (doublet), four methine carbons (doublet) and one conjugated carbonyl one in addition to two carbonyl carbons derived from the MA group. The product 4 must therefore be a [4+2]-type cycloadduct between 1 and MA.
  • 38
    • 0009628352 scopus 로고    scopus 로고
    • note
    • 13C spectra.
  • 39
    • 0009609840 scopus 로고    scopus 로고
    • note
    • 1H relationships demonstrate the structure of 5. The product 5 must therefore be an [8+2]-type cycloadduct between 2 and MA.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.