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Volumn 46, Issue 13, 2007, Pages 2266-2268

An intermolecular double [2+2] cyclodimerization of a tetraalkyne

Author keywords

Alkynes; Cobalt; Cyclization; Cyclobutadienes; Dimerization

Indexed keywords

CARBON; CYCLIZATION; LIGANDS;

EID: 34250824200     PISSN: 14337851     EISSN: None     Source Type: Journal    
DOI: 10.1002/anie.200604259     Document Type: Article
Times cited : (6)

References (32)
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    • 34250837193 scopus 로고    scopus 로고
    • For reviews of cobalt-mediated [2+2+2] cyclotrimerisations, see: a K. P. C. Vollhardt, Angew. Chem. 1984, 96, 525;
    • For reviews of cobalt-mediated [2+2+2] cyclotrimerisations, see: a) K. P. C. Vollhardt, Angew. Chem. 1984, 96, 525;
  • 12
    • 0000134376 scopus 로고
    • Eds, E. W. Abel, F. G. A. Stone, G. Wilkinson, L. S. Hegedus, Elsevier Science, Oxford
    • b) D. B. Grotjahn in Comprehensive Organometallic Chemistry II, Vol. 12 (Eds.: E. W. Abel, F. G. A. Stone, G. Wilkinson, L. S. Hegedus), Elsevier Science, Oxford, 1995, p. 741.
    • (1995) Comprehensive Organometallic Chemistry II , vol.12 , pp. 741
    • Grotjahn, D.B.1
  • 16
  • 19
  • 20
    • 34250886625 scopus 로고    scopus 로고
    • We envisaged a metal-binding contribution to the stability of the central alkene in which communication between the metals would be possible, and considered how rearrangement/retro reaction sequences would be useful in synthesis
    • We envisaged a metal-binding contribution to the stability of the central alkene in which communication between the metals would be possible, and considered how rearrangement/retro reaction sequences would be useful in synthesis.
  • 26
    • 34250834709 scopus 로고    scopus 로고
    • With the NMR spectroscopic data of 3 in hand, retrospective analysis of the NMR spectrum of the mixture suggested that the other three compounds were isomers of alkyne-coordinated cobalt η5- cyclopentadienyl (that is, noncyclized) complexes
    • 5- cyclopentadienyl (that is, noncyclized) complexes.
  • 27
    • 34250899484 scopus 로고    scopus 로고
    • 3. The asymmetric unit contains 1/2 of a dimer 3 and 1/2 of a hexane molecule. Both fragments are proximate to crystallographic inversion centers which serve to generate the remaining portions of each entity. CCDC-624438 contains the supplementary crystallographic data for this paper. These data can be obtained free of charge from The Cambridge Crystallographic Data Centre via www.ccdc.cam.ac.uk/ data_request/cif.
    • 3. The asymmetric unit contains 1/2 of a dimer 3 and 1/2 of a hexane molecule. Both fragments are proximate to crystallographic inversion centers which serve to generate the remaining portions of each entity. CCDC-624438 contains the supplementary crystallographic data for this paper. These data can be obtained free of charge from The Cambridge Crystallographic Data Centre via www.ccdc.cam.ac.uk/ data_request/cif.
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* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.