Abstract: The invention relates to a method for obtaining glycidol in a semi-continuous or continuous manner by decarboxylating glycerol carbonate at reduced pressure, at a temperature less than or equal to 130° C. and in the presence of alkoxide catalysts of alkaline metals and alkaline earth metals, metal oxides, mixed metal oxides, metal stannates and mixed metal stannates, all of which optionally supported via SiO2, ?-Al2O3, MgO and ZrO2.

Abstract: The invention relates to a method for obtaining glycidol in a semi-continuous or continuous manner by decarboxylating glycerol carbonate at reduced pressure, at a temperature less than or equal to 130° C. and in the presence of alkoxide catalysts of alkaline metals and alkaline earth metals, metal oxides, mixed metal oxides, metal stannates and mixed metal stannates, all of which optionally supported via SiO2, ?-Al2O3, MgO and ZrO2.

Abstract: The present invention relates to a process for the manufacturing of pure and substantially oligomers-free 1,4:3,6-dianhydrohexitol di(alkyl carbonate)s which comprises the steps of: a) Preparing a reaction mixture consisting of at least one dianhydrohexitol, at least 2 molar equivalents with respect to the amount of dianhydrohexitol present, of at least one dialkyl carbonate of formula R—O—C(?O)—O—R, where R has the same meaning indicated above, and from 0.01 to less than 0.1 molar equivalents of a transesterification catalyst with respect to the amount of dianhydrohexitol present; and b) Heating the reaction mixture up to its reflux temperature in a reactor preferably equipped with a rectification column comprising a number of theoretical distillation plates sufficient to separate continuously from the reaction mixture by fractional distillation the alcohol obtained or the azeotrope which the alcohol forms with the dialkyl carbonate present in the reaction mixture.

Abstract: The present invention relates to a process for the manufacturing of pure and substantially oligomers-free 1,4:3,6-dianhydrohexitol di(alkyl carbonate)s which comprises the steps of: a) Preparing a reaction mixture consisting of at least one dianhydrohexitol, at least 2 molar equivalents with respect to the amount of dianhydrohexitol present, of at least one dialkyl carbonate of formula R—O—C(?O)—O—R, where R has the same meaning indicated above, and from 0.01 to less than 0.1 molar equivalents of a transesterification catalyst with respect to the amount of dianhydrohexitol present; and b) Heating the reaction mixture up to its reflux temperature in a reactor preferably equipped with a rectification column comprising a number of theoretical distillation plates sufficient to separate continuously from the reaction mixture by fractional distillation the alcohol obtained or the azeotrope which the alcohol forms with the dialkyl carbonate present in the reaction mixture.

Abstract: Living tissue lacking sufficient oxygenation due to conditions including anoxia and ischemia is treated with an aqueous solution containing acetoacetate in an amount sufficient for affording protection of the tissue from the effects of insufficient oxygenation. The solution may be in a form of an isotonic, hypertonic, perfusion, or cardioplegic solution and also may contain pyruvate and glycerol.