Methods for asymmetric cis-dihydroxylation (AD) of quinones to produce cis-diols of quinones with high yield (i.e. a yield 30%) and high enantioselectivity (i.e. an enantiometric excess 30%) are disclosed. The method uses an iron-based catalyst, such as one or more Fe(II) complexes, as the catalyst, and can be performed under mild reaction conditions (e.g. a temperature 50 C. at 1 atom in open air). The method generally includes: (i) maintaining a reaction mixture at a temperature for a period of time sufficient to form a product, where the reaction mixture contains a quinone, one or more iron-based catalyst(s), and a solvent, and where the product contains a chiral cis-diol. Optionally, the method also includes adding an oxidant into the reaction mixture prior to and/or during step (i), such as a hydrogen peroxide solution.

The present invention generally relates to the production of vanillin and related compounds (such as aromatic carboxylic acids, quinones, etc.) involving the oxidative cleavage of aromatic compounds (such as lignin, lignols, cinnamic acid and its derivatives, etc.) under mild reaction conditions. More specifically, the present invention provides processes for the production of vanillin involving the oxidative cleavage of an aromatic compound, such as lignin or ferulic acid, using a peroxide based oxidant, such as hydrogen peroxide, in the presence of a suitable catalysis, such as vanadium oxide.

The present invention generally relates to the production of vanillin and related compounds (such as aromatic carboxylic acids, quinones, etc.) involving the oxidative cleavage of aromatic compounds (such as lignin, lignols, cinnamic acid and its derivatives, etc.) under mild reaction conditions. More specifically, the present invention provides processes for the production of vanillin involving the oxidative cleavage of an aromatic compound, such as lignin or ferulic acid, using a peroxide based oxidant, such as hydrogen peroxide, in the presence of a suitable catalysis, such as vanadium oxide.

An electroactive species includes a quinone core structure and at least one stabilizing group covalently bound thereto. The stabilizing group includes a cationic group, a hydrogen bond donor, or a combination thereof. The electroactive species has an oxidized state and at least one reduced state capable of bonding with a Lewis acid gas to form an anion adduct. Methods for separating a Lewis acid gas from a fluid mixture, electrochemical cells, and gas separation systems are also provided.

An electroactive species includes a quinone core structure and at least one stabilizing group covalently bound thereto. The stabilizing group includes a cationic group, a hydrogen bond donor, or a combination thereof. The electroactive species has an oxidized state and at least one reduced state capable of bonding with a Lewis acid gas to form an anion adduct. Methods for separating a Lewis acid gas from a fluid mixture, electrochemical cells, and gas separation systems are also provided.

The present invention relates to quinone-derived compounds with leishmanicidal activity and to the use of same in the pharmaceutical industry, specifically in the field of parasitic diseases. The invention relates specifically to a compound of formula (I), the isomeric forms thereof and the salts of same, wherein R1 and R3 are hydrogen and R2 is selected from the list consisting of cyclopentyl, cycloheptyl, 3-methyl-pentyl and adamantane, or wherein R1 and R2 are hydrogen and R3 is selected from the list consisting of cyclopentyl, cyclohexyl and cycloheptyl.

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The present invention relates to quinone-derived compounds with leishmanicidal activity and to the use of same in the pharmaceutical industry, specifically in the field of parasitic diseases. The invention relates specifically to a compound of formula (I), the isomeric forms thereof and the salts of same, wherein R1 and R3 are hydrogen and R2 is selected from the list consisting of cyclopentyl, cycloheptyl, 3-methyl-pentyl and adamantane, or wherein R1 and R2 are hydrogen and R3 is selected from the list consisting of cyclopentyl, cyclohexyl and cycloheptyl.

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