700-82-3Relevant articles and documents
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De Boer,Ellwanger
, p. 77,78,82 (1974)
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Studies toward the Syntheses of Functionally Substituted γ-Butyrolactones and Spiro-γ-butyrolactones and Their Reaction with Strong Acids: A Novel Route to α-Pyrones
Mandal, A.K.,Jawalkar, D.G.
, p. 2364 - 2369 (2007/10/02)
A general strategy for the conversion of 5-keto carboxylic acids, 6 (via their enol-lactones 7), to a variety of γ-lactones, 8a-c, and spiro-γ-lactones, 8d-g, is described.Lactones 8b and 8d,e may be further converted into the corresponding α-pyrones, 17b and 17d,e, respectively, in the presence of strong acids.
A VERSATILE AND CONCISE ROUTE TO FUNCTIONALLY SUBSTITUTED γ-BUTYROLACTONES AND SPIRO-γ-BUTIROLACTONES (LACTONE ANNELATION)
Mandal, Arun K.,Jawalkar, D. G.
, p. 99 - 100 (2007/10/02)
A novel route to the synthesis of functionally substituted γ-butyrolactones and spiro-γ-butyrolactones, from six-membered cyclic enol-esters, is described.