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Organic Compounds -- Part Of The Class 532-570 Series > Azo Compounds Containing Formaldehyde Reaction Product As The Coupling Component > Carbohydrates Or Derivatives > Oxygen Containing Hetero Ring (e.g., Dioxirane, Etc.) > Lactones (i.e., -c(=x)o-, Wherein X Is Chalcogen, Is Part Of The Hetero Ring) > The Lactone Ring Is Five-membered The Lactone Ring Is Five-memberedThe Lactone Ring Is Five-membered patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.10/26/06 - 20060241310 - V-p-ci composite oxide catalyst precursor used for producing maleic anhydride from butance The present invention provides a catalyst precursor for producing maleic anhydride by oxidizing butane. Said catalyst precursor is prepared by a process comprising partially reducing V+5 to V+4 in a mixture of alcohols consisting of isobutanol and benzyl alcohol in a volume ratio of 2.5-5.0, then adding a phosphoric oxy-acid ... 07/27/06 - 20060167281 - 1,2,4- trioxepanes as precursors for lactones The present invention pertains to a novel process for the preparation of lactones by decomposition of a 1,2,4-trioxepane of formula (I) wherein, R is H or CH3, n is 1-14, Rx independently is any substituent on the ring structure, including substituents which form bi- or tricyclic structures, and m is ... 04/20/06 - 20060084818 - Gas phase synthesis of methylene lactones using catalysts derived from hydrotalcite precursors Process for converting certain lactones to their alpha-methylene substituted forms using (i) a catalyst derived from a hydrotalcite or (ii) a composite catalyst comprising the hydrotalcite-derived catalyst into which at least one of lithium, sodium, potassium, rubidium, cesium, magnesium, calcium, strontium, barium has been incorporated. ... 12/22/05 - 20050283008 - Process for the preparation of lactones or epoxides The present invention relates to a process for the oxidation, in an inert solvent, of a non-aromatic or non-enonic ethylenic bond or of a non-conjugated cyclic ketones into the corresponding epoxides, respectively lactone, using H2O2 as oxidant, a content in water of the reaction medium below 15% w/w and, as ... 06/16/05 - 20050131239 - Preparation of aryl-substituted butenolides using mucohalic acids Methods and materials for preparing 3-aryl-2-buten-4-olides and 2,3-bisaryl-2-buten-4-olides are disclosed. The methods include reacting a mucohalic acid with a reducing agent to give a 2,3-dihalo-2-buten-4-olide, which undergoes at least one Pd catalyzed cross-coupling reaction with an arylboronic acid. ... ### FreshPatents.com Support |