processo de preparação de uma lactona, catalisador de hidrogenação de ciclização e utilização

摘要

A method for preparing a lactone is described. Also described, is the preparation of butyrolactone, valerolactone and caprolactone. The method for preparing a lactone can include a reduction of a dicarboxylic acid using hydrogen, in a gaseous phase and in the presence of an effective amount of a catalyst including an active ruthenium-tin phase including at least one Ru2Sn3 alloy and an Ru3Sn7 alloy.