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Volumn 55, Issue 43, 1999, Pages 12515-12530

Synthesis of chiral [60]fullerene-steroid bisadducts using steroid templates

Author keywords

[No Author keywords available]

Indexed keywords

FULLERENE DERIVATIVE; STEROID;

EID: 0033595886     PISSN: 00404020     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0040-4020(99)00742-5     Document Type: Article
Times cited : (39)

References (39)
  • 20
    • 0009775137 scopus 로고    scopus 로고
    • note
    • 1H NMR spectra should be broadened due to the slow slipping motion around the cyclohexene rings in the open adducts. In the mass spectra of 11-13, the parent ion peaks for the open adducts were scarcely observed. In contrast, the mass spectrum of 10 afforded the parent ion peaks in the region of the open mono- and bisadducts, although the intensities of the peaks were relatively weak. The foregoing findings imply that the cyclic bisadduct of 10 is less stable than those of 11-13.
  • 21
    • 0009796330 scopus 로고    scopus 로고
    • note
    • 1H NMR spectrum of 10, which gave the 6-7 proton peaks with same intensity for the COOMe group indicating the formation of the 6-7 isomers of 10
  • 34
    • 0009752811 scopus 로고    scopus 로고
    • Recently, Diederich and his co-workers reported that the Cotton effects in cis-2 [60]fullerene-bisadducts with a chiral template were too weak to be detected (see ref. 6). It was concluded that the chiral template in the cis-2 bisadducts is too far from the achiral fullerene chromophore to generate the induced CD. The cis-2 bisadducts had only two chiral centers in the template part, however, the contribution of the number of the chiral centers was not discussed
    • Recently, Diederich and his co-workers reported that the Cotton effects in cis-2 [60]fullerene-bisadducts with a chiral template were too weak to be detected (see ref. 6). It was concluded that the chiral template in the cis-2 bisadducts is too far from the achiral fullerene chromophore to generate the induced CD. The cis-2 bisadducts had only two chiral centers in the template part, however, the contribution of the number of the chiral centers was not discussed.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.