14557-92-7Relevant academic research and scientific papers
New syntheses on the basis of ethyl 2-oxotetrahydrofuran-3-carboxylates
Kochikyan,Arutyunyan,Arutyunyan,Avetisyan
experimental part, p. 849 - 854 (2009/06/08)
Alkylation of 5-substituted ethyl 5-methyl-2-oxotetrahydrofuran-3- carboxylates with alkyl halides in the presence of sodium ethoxide gave the corresponding 3-alkyl derivatives which were converted into 3,5-substituted 5-methyl-N-(4-nitrophenyl)-2-oxotetr
Combined dealkoxycarbonylation and lactonisation of unsaturated malonates in ionic liquids
Oswald, Magalie F.,Parsons, Andrew F.,Yang, Wei,Bowden, Martin
, p. 8087 - 8089 (2007/10/03)
Heating unsaturated malonates with LiCl and water in [bmim][Br] or [bmim][BF4]/[bmim][Br] produces unsaturated esters or lactones, respectively.
Reaction of silyl ketene acetals with epoxides: A new method for the synthesis of γ-butanolides
Maslak, Veselin,Matovi?, Radomir,Sai?i?, Radomir N.
, p. 8957 - 8966 (2007/10/03)
Titanium tetrachloride promoted reaction of silyl ketene acetals with epoxides, followed by acidic work-up, affords butanolides in moderate/good yields. With epihalohydrins the reaction is regioselective and occurs at the less substituted end of the epoxide; the γ-haloalkyl-γ-butanolides thus obtained can be further transformed into various products. Graphical Abstract
CYCLODESHYDRATION DE DIOLS EN PRESENCE D'HMPT1
Diab, J.,Abou-Assali, M.,Gervais, C.,Anker, D.
, p. 1501 - 1502 (2007/10/02)
1,4 and 1,5-diols heated with 0.3 equivalent of HMPA undergo cyclodehydration leading to tetrahydrofurans and tetrahydropyrans.
