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Zur Synthese von β-Alkyl-α-methylen-γ-butyrolactonen (1992)

Röder, Erhard ; Krauß, Hiltrud

Weinheim : Wiley-Blackwell

Liebigs Annalen 1992 (1992), S. 177-181

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ISSN: 0170-2041

Keywords: Succinic acid, 3-alkylidene-, monoethyl esters ; γ-Butyrolactones ; Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: Synthesis of β-Alkyl-α-methylene-γ-butyrolactonesThe ylene 1 reacts with aldehydes to give 3-alkylidenesuccinic acid monoethyl esters 2, which form β-alkylidene-γ-butyrolactones 3 when treated with sodium diethyldihydroaluminate. Hydrogenation of the double bond leads to the β-alkyl-γ-butyrolactones 4. The β-alkyl-α-methylene-γ-butyrolactones 5 are obtained by Mannich reaction.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/jlac.199219920133

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