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| Number | Title | Issue Date |
| 7227044 | Cycloalkanone composition The present invention relates to a cycloalkanone composition which contains cycloalkanone (1) in an amount of 70 wt % or more based on the composition, wherein the content of a dimer of a cycloalkanone represented by formula (2) is 0.055 or less in terms of weight r... | 06/05/2007 |
| 7112313 | Process for making, and use of, anionic clay materials Anionic clay compounds such as hydrotalcite-like compounds can be made by a process wherein a non-hydrotalcite-like compound (or a hydrotalcite-like compound) are heat treated and then hydrated to form hydrotalcite-like compounds having properties (e.g., increased h... | 09/26/2006 |
| 6929736 | Compounds, compositions and methods to reduce SOx emissions from FCC units Anionic clay compounds such as hydrotalcite-like compounds can be made by a process wherein a non-hydrotalcite-like compound (or a hydrotalcite-like compound) are heat treated and then hydrated to form hydrotalcite-like compounds having properties (e.g., increased h... | 08/16/2005 |
| 6559343 | Process for producing 2,2,4,4-tetra-substituted 1,3,5-cyclohexanetriones Process for the preparation of 2,2,4,4-tetrasubstituted 1,3,5-cyclohexanetriones of the formula I, ##STR1## by reaction of a cyclobutane-1,3-dione of the formula II ##STR2## with an O or N nucleophile and a silylating reagent, and subsequent acetylat... | 05/06/2003 |
| 6433230 | Process for conducting an aldol condensation ,ଲ-Unsaturated keto compounds are prepared by base-catalyzed aldol condensation of aldehydes and/or ketones having from 1 to 15 carbon atoms, comprising: reacting the aldehydes and/or ketones with an aqueous catalyst solution under adiabatic ... | 08/13/2002 |
| 5352839 | Isophorone process Isophorone is made by the aldol condensation of acetone followed by separate steps to remove acetone, mesityloxide, and beta isophorone. Variations include recycling of mesityloxide and/or beta isophorone.... | 10/04/1994 |
| 5243081 | Aldol condensation dehydration catalyst, a process for preparing the same and a process for preparing an aldol condensation dehydrate using the process The present invention provides an aldol condensation dehydration catalyst, a process for preparing the same comprising reacting an aluminium salt with at least one magnesium compound selected from the group consisting of magnesium oxide and magnesium hydr... | 09/07/1993 |
| 5055620 | Process for aldol condensation Basic mixed oxides useful for base catalyzed reactions such as the aldol condensation of acetone and also useful as catalyst supports are made by mixing an acid such as nitric acid or acetic acid with a pseudoboehmite to form a gel, adding magnesium oxide... | 10/08/1991 |
| 5026919 | Base-catalyzed reactions using zeolite catalysts Basic intermediate or large pore zeolites having a Constraint Index less than 12 are useful as catalysts in the dehydrogenation-aromatization of cyclie dienes, in the isomerization of olefins and in the aldol condensation, and particularly in the cyclizat... | 06/25/1991 |
| 4877904 | Bicyclic ketones as odorants and flavorants Novel odorant and/or flavoring substances are described. These are the compounds of the formula ##STR1## wherein: R1 represents methyl or ethyl, R2 represents hydrogen or methyl, the dotted line represents an optional carbon-carbon b... | 10/31/1989 |
| 4788342 | Process for preparation of 4,4,8,8,10-pentamethylbicyclo[4,4,0]-decene-(1,6)-one(2) 4,4,8,8,10-pentamethylbicyclo[4,4,0]-decene-(1,6)-one(2), is produced from the bottom product of the acetone condensation reaction collecting in the production of isophorone by fractionation. A ketone blend consisting essentially of C15 compoun... | 11/29/1988 |
| 4701562 | Process for the condensation of aldehydes Aldehydes can be condensed with ketones or aldehydes to produce higher aldehydes or ketones by contacting the materials to be condensed with a nonzeolitic molecular sieve. The condensation may be carried out in the presence of hydrogen to give as product ... | 10/20/1987 |
| 4668828 | Conversion of prostaglandin analogs into a bicarbonate insoluble oligomeric mixture A method for oligomerization of a group of prostaglandin analogs such as Ethyl Analog 3-(trans-3-keto-1-pentenyl)-2-ethyl-2-cyclopentenone into a biologically active exhibiting protection of oxidative phosphorylation of degenerated mitochondria and sodi... | 05/26/1987 |
| 4663486 | Conversion of prostaglandin analogs into a bicarbonate insoluble oligomeric mixture A method for oligomerization of a group of prostaglandin analogs such as Ethyl Analog 3-(trans-3-keto-1-pentenyl)-2-ethyl-2-cyclopentenone into a biologically active exhibiting protection of oxidative phosphorylation of degenerated mitochondria and sodi... | 05/05/1987 |
| 4570021 | Preparation of ketones Disclosed is a method for the preparation of ketones by a catalytic vapor phase reaction of using reactants such as ketones with carboxylic acids and/or carboxylic acid precursors. An example of such a reaction is that of acetone with pivalic acid over a ... | 02/11/1986 |
| 4535187 | Preparation of isophorone and mesityl oxide from acetone The aldol condensation of acetone to isophorone and mesityl oxides in high conversions and efficiencies is achieved by a catalyst comprising a calcined calcium salt deposited on an alumina support.... | 08/13/1985 |
| 4476324 | Catalyzed aldol condensations Heat treated anionic clay mineral is an improved catalyst for the conversion of acetone to mesityl oxide and isophorone as well as for the aldol condensation of other carbonyl-containing compounds.... | 10/09/1984 |
| 4463194 | Process for making piperitone from plinols A process for making piperitone from crude plinols involving hydrogenating the crude plinols to form dihydroplinols and dehydrating the dihydroplinols to yield an iridene. The iridene is then oxidatively cleaved at the unsaturation to form an acyclic dion... | 07/31/1984 |
| 4449008 | Substituted methyl isopropyl cyclohexenones, organoleptic uses thereof and process for preparing same Described is the genus of compounds defined according to the structure: ##STR1## wherein one of the dashed lines represents a carbon-carbon double bond and the other of the dashed lines represents a carbon-carbon single bond; wherein R4 re... | 05/15/1984 |
| 4413145 | Process for the synthesis of 3-keto-cyclopentene-5-oxy derivatives having insecticide activity Process for the synthesis of the 3-keto-cyclopentene-5-oxy derivatives (rethrolones) having the general formula: ##STR1## wherein: R1 is hydrogen, saturated or unsaturated C1 -C10 alkyl. R2 is saturated or ... | 11/01/1983 |
| 4201717 | 14ଲ-Hydroxyandrostanes 14ଲ-Hydroxyandrostanes and processes for the preparation thereof in which the 14ଲ-hydroxy group is fabricated internally by means of a novel cyclization of 8,14-seco-4,6,9(11)-androstatrien-3,14,17-triones is disclosed. The 14ଲ-hydroxyan... | 05/06/1980 |
| 4181683 | 1,7-Octadien-3-one and process for preparing the same 1,7-Octadien-3-one of the formula: ##STR1## and a process for preparing the same by oxidizing 1,7-octadien-3-ol.... | 01/01/1980 |
| 4171326 | Process for preparing 2-(1-cyclohexenyl)-cyclohexanone 2-(1-CYCLOHEXYL)-CYCLOHEXANONE IS PREPARED BY CONDENSATION OF CYCLOHEXANONE USING A MACRO-POROUS ION EXCHANGE RESIN SUCH AS Lewatite SPC 118 W or equivalent at temperatures not exceeding 125° C., provided that the conversion reaction is maintained below ... | 10/16/1979 |
| 4108898 | Asymmetric synthesis of organic compounds Optically active organic compounds are prepared starting from optically inactive reactants by means of an optically active agent which influences the course of the reaction. In particular optically active compounds having a "meso" type carbon atom undergo... | 08/22/1978 |
| 4105705 | Symmetrical biaryl synthesis via rhodium catalyzed dimerization of aryl mercuric salts Vinyl- and arylmercuric halide salts undergo reaction with rhodium (I) and (III) catalysts, preferably in the presence of lithium chloride to provide essentially quantitative yields of the corresponding 1,3 dienes and biaryls respectively. Importantly, th... | 08/08/1978 |
| 4102929 | Asymmetric synthesis of organic compounds Optically active organic compounds are prepared starting from optically inactive reactants by means of an optically active agent which influences the course of the reaction. In particular optically active compounds having a "meso" type carbon atom undergo... | 07/25/1978 |
| 4052458 | Process for preparing 2-(1-cyclohexenyl)-cyclohexanone 2-(1-CYCLOHEXYL)-CYCLOHEXANONE IS PREPARED BY CONDENSATION OF CYCLOHEXANONE USING A MACRO-POROUS ION EXCHANGE RESIN SUCH AS Lewatite SPC 118 W or equivalent at temperatures not exceeding 125° C., provided that the conversion reaction is maintained below ... | 10/04/1977 |
| 3975440 | Asymmetric synthesis of organic compounds Optically active organic compounds are prepared starting from optically inactive reactants by means of an optically active agent which influences the course of the reaction. In particular optically active compounds having a "meso" type carbon atom undergo... | 08/17/1976 |
| 3972951 | Process for the formation of 2,6-diphenyl-phenol A process for the formation of 2,6-diphenylphenol involving the autocondensation of cyclohexanone with itself to form a mixture of cyclic ketones containing a tricyclic ketone fraction and the dehydrogenation of the tricyclic ketone fraction to form 2,6-d... | 08/03/1976 |
| 3965117 | Stereospecific total steroidal synthesis via substituted c/d-trans indanones Total synthesis of known progestationally active steroidal materials. The steroids can be synthesized depending on the particular starting reactants selected by employing as intermediates bicyclic compounds of the formula ##SPC1## Wherein m is an integer ... | 06/22/1976 |
| 3962280 | Process for preparing benzopyran derivatives Novel benzopyran derivatives of the formula ##SPC1## Wherein R1 and R3 each are lower alkyl; n is the integer 1 or 2; --A--B-- is >CH--CH2 -- or >CH=CH--; X is a free, esterified or etherified hydroxy group; and Y is H or ... | 06/08/1976 |
| 3962341 | Production of piperitenone A process for the production of piperitenone by heating 3,3-dimethylacrolein in the presence of an acid. Piperitenone is a valuable intermediate for the synthesis of menthol which is much sought after for cosmetic and pharmaceutical purposes.... | 06/08/1976 |
| 3962339 | Process for the production of bicyclo decenone derivatives Limonene is epoxidized and the product reacted with BF3 -etherate to produce dihydrocarvone which is condensed with 3-peten-2-one to give a mixture of the 5,6-dimethyl-9-isopropenyl and 5,10-dimethyl-7-isopropenyl derivatives of bicyclo [4,4,0]... | 06/08/1976 |
