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Volumn 47, Issue 37, 2006, Pages 6627-6633

Toward aflatoxin B2: an unexpected additive effect in a Dötz benzannulation reaction

Author keywords

Allochemical; Benzannulation; Carbene; Chromium; D tz; Xenochemical

Indexed keywords

ACETYLENE; AFLATOXIN B2; CYCLOPENTANE;

EID: 33746807669     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tetlet.2006.07.041     Document Type: Article
Times cited : (4)

References (56)
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    • The remainder of the mass balance proved to be an intractable mixture, however only one regiosisomer of the benzannulated product was observed.
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    • note
    • The use of less polar solvents in such reactions usually results in an increase in benzannulation at the expense of cyclopentannulation as detailed in Ref. 4.
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    • To our knowledge there is only one other mention of a completion reaction in an intermolecular Dötz reaction, see:. Liebskind L.S. (Ed), JAI Press, London
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    • In this case the regiochemistry of alkyne incorporation was inferred by analogy and not proven. For intramolecular capture of unsymmetrical diynes, see. Wulff W.D., Kaesler R.W., Peterson G.A., and Tang P.-C. J. Am. Chem. Soc. 107 (1985) 1060-1062
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    • 13C NMR data:{A figure is presented} (cpd. i: Gulías, M.; Rodríguez, J. R.; Castedo, L.; Mascareñas, J. L. Org. Lett. 2003, 5, 1975-1977; cpd. ii: Buckley, D. J.; McKervey, M. A. J. Chem. Soc., Perkin Trans. 1 1985, 2193-2200).
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    • We were also unable to isolate any of the alternate cyclopentenone iii from this particular reaction.{A figure is presented}.
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    • For the effects of additives in such reactions, see and references cited therein
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* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.