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Volumn 73, Issue 14, 2008, Pages 5558-5565

Microwave-assisted syntheses of N-heterocycles using alkenone-, alkynone- and aryl-carbonyl O-phenyl oximes: Formal synthesis of neocryptolepine

Author keywords

[No Author keywords available]

Indexed keywords

AROMATIC COMPOUNDS; CHEMICAL REACTIONS; DERIVATIVES; NITROGEN COMPOUNDS; PYRIDINE; RAW MATERIALS;

EID: 48249156559     PISSN: 00223263     EISSN: None     Source Type: Journal    
DOI: 10.1021/jo800847h     Document Type: Article
Times cited : (146)

References (62)
  • 2
    • 0000782249 scopus 로고    scopus 로고
    • Renaud, P, Sibi, M. P, Eds; Wiley-VCH: Weinheim
    • (b) Stella, L. In Radicals in Organic Synthesis; Renaud, P., Sibi, M. P., Eds; Wiley-VCH: Weinheim, 2001; Vol. 1, p 317.
    • (2001) Radicals in Organic Synthesis , vol.1 , pp. 317
    • Stella, L.1
  • 8
  • 30
    • 48249134216 scopus 로고    scopus 로고
    • The cyclohexadienyl H-atoms could be abstracted by phenoxyl radicals or other radicals in the system, or possibly by electron transfer from 24 yielding the corresponding cyclohexadienyl cations which then lose a proton. The latter route seems unlikely in t-BuPh solvent and in the absence of a good electron-acceptor molecule. Air oxidation of 25a,b during workup is another possibility
    • The cyclohexadienyl H-atoms could be abstracted by phenoxyl radicals or other radicals in the system, or possibly by electron transfer from 24 yielding the corresponding cyclohexadienyl cations which then lose a proton. The latter route seems unlikely in t-BuPh solvent and in the absence of a good electron-acceptor molecule. Air oxidation of 25a,b during workup is another possibility.
  • 31
  • 39
    • 7044284727 scopus 로고    scopus 로고
    • Cyclizations onto 6-chloropyridines appear to be an exception; see: Bacque, E.; Qacemi, M. El.; Zard, S. Z. Org. Lett. 2004, 6, 3671-3674.
    • Cyclizations onto 6-chloropyridines appear to be an exception; see: Bacque, E.; Qacemi, M. El.; Zard, S. Z. Org. Lett. 2004, 6, 3671-3674.
  • 44
    • 0004394597 scopus 로고
    • (b) Sliwa, W. Pol. J. Chem. 1981, 55, 2199-2204.
    • (1981) Pol. J. Chem , vol.55 , pp. 2199-2204
    • Sliwa, W.1
  • 46
    • 3242660020 scopus 로고    scopus 로고
    • For previous syntheses, see: a
    • For previous syntheses, see: (a) Deprets, S.; Kirsch, G. ARKIVOC 2002, 40-48.
    • (2002) ARKIVOC , pp. 40-48
    • Deprets, S.1    Kirsch, G.2


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.