Unexpected Thermal Benzannulation of 1,3,5-Metallahexatrienes:  Synthesis of o-Alkoxyphenol-Containing Polycycles

Unexpected Thermal Benzannulation of 1,3,5-Metallahexatrienes:  Synthesis of o-Alkoxyphenol-Containing Polycycles

A new synthesis of o-methoxyphenol-containing polycyclic systems is described. Cyclobutene-containing 1,3,5-metallahexatrienes, obtained by [2 + 2] cycloaddition of cyclic enol ethers and chromium or tungsten alkynyl carbene complexes, undergo unexpected thermal benzannulation to provide access to a...

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Veröffentlicht in:Organic letters 1999-08, Vol.1 (4), p.541-544
Hauptverfasser: Barluenga, José, Aznar, Fernando, Palomero, M. Angel, Barluenga, Sofía
Format: Artikel
Sprache:eng
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Zusammenfassung:A new synthesis of o-methoxyphenol-containing polycyclic systems is described. Cyclobutene-containing 1,3,5-metallahexatrienes, obtained by [2 + 2] cycloaddition of cyclic enol ethers and chromium or tungsten alkynyl carbene complexes, undergo unexpected thermal benzannulation to provide access to a wide range of o-methoxy-substituted aromatic alcohols.
ISSN:1523-7060
1523-7052
DOI:10.1021/ol9906256