3-Methyl-1,3-Pentadiene

Fisher, Harry L.; Chittenden, F. D.

doi:10.1021/ie50248a017

Cited by 3 publications

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The Aldol Condensation

Nielsen

Houlihan²

2011

Organic Reactions

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The aldol condensation takes its name from aldol (3‐hydroxybutanal) a name introduced by Wurtz who first prepared the beta‐hydroxy aldehyde from acetaldehdye in 1872. The aldol condensation includes reactions producing beta‐hydroxy aldehydes or beta‐hydroxy ketones by self condensations or mixed condensations of aldehydes and ketones as well as reactions leading to alpha, beta‐unsaturated aldehydes or alpha,beta‐unsaturated ketones formed by dehydration of intermediate beta‐aldols or beta‐ketals. The Claisen‐Schmidt condensation is most often taken to be the condensation of an aromatic aldehyde or ketone usually in the presence of a basic catalyst. The term aldol condensation has also been applied to many other condensations involving the reaction of an aldehyde or ketone. These condenations are discussed. The present review includes examples that are solely condensation reactions of aldehydes and ketones.

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The Aldol Condensation

Nielsen

Houlihan²

2011

Organic Reactions

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Aldol condensations with butanone

Beets

Essen

1958

Recl. Trav. Chim. Pays‐Bas

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A new method for the aldol condensation of citral with butanone is described by which the condensation takes place mainly at the methylenc group of the ketone. The mechanism of the reaction is discussed.The condensation of an aldehyde with butanone may take place theoretically in two different ways, i.e. at the methylene group ( I ) or at the methyl 'group (11) of bhe ketone.The literature data show that the ratio between the amounts of the two compounds present in the condensation product is influenced by several factors.Harries and Miifler 3 ) demonstrated the influence of the catalyst; the condensation of benzaldehyde with butanone takes place practically exclusively at the methylene group when the mixture is saturated with hydrogen chloride.Whereas all available literature data 4 ) 6 ) seem to indicate that the I ) The method described in this gaper is the subject of patent applications (e.8.2 ) This paper was presented before the VIIIth Congress0 nazlonale di chimica.

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Praktischer Teil

Baroni¹

1943

Katalyse in Der Organischen Chemie

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3-Methyl-1,3-Pentadiene

Cited by 3 publications

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The Aldol Condensation

The Aldol Condensation

Aldol condensations with butanone

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