Preparation of .gamma.-butyrolactone

Details Preparation of .gamma.-butyrolactone Preparation of .gamma.-butyrolactone

C - Chemistry, Metallurgy

07

D

C07D 307/33 (2006.01) C07D 315/00 (2006.01)

Patent

CA 2176587

The invention pertains to a method for preparing .gamma.-butyrolactone, wherein 2,5-dihydrofuran or 2,3-dihydrofuran or mixtures of these two hydrofurans are reacted in gas phase, in the presence of water and in the presence or absence of added hydrogen, at an elevated temperature, using a hydrogenation catalyst.

L'invention concerne un procédé de préparation de .gamma.-butyrolactone, selon lequel on fait réagir du 2,5-dihydrofurane ou du 2,3-dihydrofurane, ou des mélanges de ces deux dihydrofuranes, en phase gazeuse, en présence d'eau et avec ou sans adjonction d'hydrogène, à température élevée, en présence d'un catalyseur d'hydrogénation.

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