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Volumn 63, Issue 22, 2007, Pages 4793-4805

Three-component coupling using arynes and isocyanides: straightforward access to benzo-annulated nitrogen or oxygen heterocycles

Author keywords

Aryne; Isocyanide; Nitrogen heterocycle; Oxygen heterocycle; Three component coupling

Indexed keywords

ALDEHYDE; BENZOFURAN DERIVATIVE; BENZOQUINONE DERIVATIVE; CYANIDE; HETEROCYCLIC COMPOUND; IMINE; ISOINDOLE DERIVATIVE; KETONE DERIVATIVE; NITROGEN; OXYGEN;

EID: 34247272920     PISSN: 00404020     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tet.2007.03.042     Document Type: Article
Times cited : (74)

References (54)
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    • For reviews, see:
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    • For a review on nucleophilic couplings with arynes, see:. Trost B.M., and Fleming I. (Eds), Pergamon, Oxford
    • For a review on nucleophilic couplings with arynes, see:. Kessar S.V. In: Trost B.M., and Fleming I. (Eds). Comprehensive Organic Synthesis Vol. 4 (1991), Pergamon, Oxford 483-515
    • (1991) Comprehensive Organic Synthesis , vol.4 , pp. 483-515
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    • N-C σ-bond:
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    • For a review on insertion reactions of arynes into element-element σ-bonds, see:
    • For a review on insertion reactions of arynes into element-element σ-bonds, see:. Peña D., Pérez D., and Guitián E. Angew. Chem., Int. Ed. 45 (2006) 3579-3581
    • (2006) Angew. Chem., Int. Ed. , vol.45 , pp. 3579-3581
    • Peña, D.1    Pérez, D.2    Guitián, E.3
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    • 34247197556 scopus 로고    scopus 로고
    • Three-component couplings of arynes were hitherto achieved using anionic nucleophiles in contrast to the results demonstrated herein:
  • 26
    • 34247263672 scopus 로고    scopus 로고
    • Other three-component couplings using neutral nucleophiles:
  • 30
    • 34247223563 scopus 로고    scopus 로고
    • Three-component couplings of dimethyl acetylenedicarboxylate, isocyanides, and electrophiles have been reported:
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    • 34247180538 scopus 로고    scopus 로고
    • note
    • Although the three-component coupling product was elucidated to be a single isomer by NMR spectra, we could not determine the exact stereochemistry (E or Z) of the imine unit.
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    • 34247242571 scopus 로고    scopus 로고
    • note
    • Crystallographic data for the structures in this paper have been deposited with the Cambridge Crystallographic Data Centre as supplementary publication numbers CCDC 247264. Copies of the data can be obtained, free of charge, on application to CCDC, 12 Union Road, Cambridge CB2 1EZ, UK [fax: +44 (0)1223 336033 or e-mail: deposit@ccdc.cam.ac.uk].
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    • Preferential nucleophilic attack at a para position of a chlorine atom also occurred in electrophilic coupling reactions of 4-chlorobenzyne:
  • 43
    • 34247195971 scopus 로고    scopus 로고
    • note
    • Similar regioselectivities were observed in other electrophilic coupling reactions of these unsymmetrical arynes. See Refs. 5,9b.
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    • note
    • For the reversibility in the addition of nucleophiles to arynes, see Ref. 3.
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    • note
    • The three-component coupling of benzyne with 2b and 7a at 0 °C proceeded much slower (47 h, 63% yield) than that with 3a (entry 3 of Table 2), showing lower reactivity of sulfonylimines in the three-component coupling.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.