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Electrocyclic reactions octatetraene-cyclooctatriene

The predicted conrotatory cyclization of octatetraenes was confirmed for the case of the methyl-substituted compounds, which above 16 °C readily formed the cyclooctatrienes shown in equations 13 and 14)14. We conclude this section with an electrocyclic reaction involving ten TT-electrons, that is, the formation of azulene (17) when the fulvene 16 is heated (equation 15)15,16. [Pg.510]

A number of electrocyclic reactions have been carried out with systems of other sizes, e.g., conversion of the 1,3,5,7-octatetraene 97 to the cyclooctatriene 98.383 The stereochem-... [Pg.1118]

See other pages where Electrocyclic reactions octatetraene-cyclooctatriene is mentioned: [Pg.193]    [Pg.262]    [Pg.812]   
See also in sourсe #XX -- [ Pg.262 , Pg.356 ]



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1,3,5,7-Octatetraene

1,3,5,7-Octatetraene, electrocyclization

1.3.5- cyclooctatriene

Cyclooctatrienes

Octatetraenes

Octatetraenes 1,3,5,7-Octatetraene

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