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Volumn 71, Issue 19, 2006, Pages 7477-7480

Template synthesis of [2]rotaxanes with large ring components and tris(biphenyl)methyl group as the blocking group. The relationship between the ring size and the stability of the rotaxanes

Author keywords

[No Author keywords available]

Indexed keywords

RINGS (COMPONENTS); SYNTHESIS (CHEMICAL); THERMAL EFFECTS;

EID: 33748998172     PISSN: 00223263     EISSN: None     Source Type: Journal    
DOI: 10.1021/jo060829h     Document Type: Article
Times cited : (36)

References (48)
  • 1
    • 0004124947 scopus 로고
    • Schill, G., Ed.; Academic Press: New York
    • Reviews: (a) Catenanes, Rotaxanes, and Knots; Schill, G., Ed.; Academic Press: New York, 1971.
    • (1971) Catenanes, Rotaxanes, and Knots
  • 2
    • 0003542983 scopus 로고    scopus 로고
    • Dietrich-Buchecker, C. O., Sauvage, J. P., Eds.; Wiley-VCH: New York
    • (b) Molecular Catenanes, Rotaxanes and Knots; Dietrich-Buchecker, C. O., Sauvage, J. P., Eds.; Wiley-VCH: New York, 1999.
    • (1999) Molecular Catenanes, Rotaxanes and Knots
  • 36
    • 33749008254 scopus 로고    scopus 로고
    • note
    • The rigid phenanthroline moiety prevents the alkyl groups of the ring component to come closer, so that the cavity of the macrocycle would not become narrow. We expected a similar effect by introducing the resorcinol moiety.
  • 44
    • 33749037456 scopus 로고    scopus 로고
    • note
    • Though we confirmed the formation of 9 by the NMR analysis of the crude mixture, we could not isolate 9 in pure form. See Supporting Information for the NMR spectra of 9a.
  • 45
    • 33749021120 scopus 로고    scopus 로고
    • note
    • The formation of 11 might occur if the conformation of 9 was not suitable for the formation of the rotaxane when the C-O bond forming reaction proceeded. Incomplete formation of 9 might also result in the formation of 11.
  • 46
    • 33749016043 scopus 로고    scopus 로고
    • note
    • Attempted detection of the rotaxane in the crude mixture by GPC or NMR analysis failed. Since the formation of the rotaxane from 9e was less likely, the reaction was not carried out.
  • 47
    • 33749012854 scopus 로고    scopus 로고
    • See Supporting Information
    • See Supporting Information.
  • 48
    • 33749024195 scopus 로고    scopus 로고
    • note
    • 1/2 for the reaction of 10b at 27 °C was ca. 200 h. Considering the time required for the decomplexation and purification, we assume that the partial dissociation took place. In solid state, 10b could be stored in a freezer (-20 °C) for a couple of months without dissociation.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.