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| Number | Title | Issue Date |
| 7393982 | Processes for preparing β-diketone compound, metal complex thereof and metallic compound Disclosed is a process for preparing a β-diketone compound such as 2,6-dimethyl-3,5-heptanedione, which comprises reacting an ester compound such as an alkyl isobutyrate with a ketone compound such as 3-methylbutanone in the presence of an alkali metal alkoxide as ... | 07/01/2008 |
| 7351850 | Process for producing alphaoxocarbonyl compound A process by which an α-oxocarbonyl compound useful as an intermediate for pharmaceuticals/agricultural chemicals can be industrially advantageously and efficiently produced in a high yield. The process, which is for producing an α-oxocarbonyl compound represented... | 04/01/2008 |
| 7351867 | Catalyst system for aerobic oxidation of primary and secondary alcohols The present invention relates to a process of oxidation of alcohols selectively to aldehydes or ketones with molecular oxygen using a TEMPO based catalyst, Fe-bipyridyl or Fe-phenantroline co-catalyst and N-bromosuccinimide promoter in acetic acid solvent. The oxida... | 04/01/2008 |
| 7326798 | Chiral heptyne derivatives for the preparation of epothilones and processes for their preparation The invention relates to a new synthetic process for the production of key intermediates useful in the synthesis of epothilones or epothilone derivatives, to certain compounds used to produce these key intermediates and to a process to produce said compounds. ... | 02/05/2008 |
| 7323603 | Method for aldol reaction in water A method for aldol reaction in water, which comprises: reacting an aldehyde with a silyl enol ether in an aqueous medium in the presence of a boronic acid represented by the following general formula (1): R1R2BOH (1) (w... | 01/29/2008 |
| 7323483 | Processes and compounds for the preparation of substituted naphthylindole derivatives The present invention provides processes for the preparation of substituted naphthylindole derivatives that can be used as inhibitors of plasminogen activator inhibitor-1(PAI-1). In certain embodiments of the invention, the processes involve reactions that include o... | 01/29/2008 |
| 7319172 | Process for the preparation of methylheptenone Methylheptenone (2-methyl-2-hepten-6-one) is prepared by reacting 2-methyl-3-buten-2-ol with isopropenyl methyl ether in the presence of hydrogen tris(oxalato)phosphate or hydrogen bis(oxalato)borate. ... | 01/15/2008 |
| 7084306 | Process for preparing β-diketone compound and process for preparing metal complex thereof Disclosed is a process for preparing 2,2,6,6-tetramethyl-3,5-heptanedione, comprising reacting a pivalic acid alkyl ester with pinacolone in the presence of an alkali metal alkoxide catalyst using a pivalic acid alkyl ester as a solvent but using no other solvent or... | 08/01/2006 |
| 7060859 | Use of a solid hydrotalcite structure incorporating fluorides for basic catalysis of Michael or Knoevenagel reactions The invention concerns the use of a solid basic catalyst comprising a hydrotalcite structure wherein part at least of the compensating anions are fluoride anions F− for producing Knoevenagel of Michael condensation reactions. The invention also concerns... | 06/13/2006 |
| 7030280 | Process for producing optically active β-trifluoromethyl-β-hydroxycarbonyl compound The present invention provides a process for producing an optically active β-trifluoromethyl-β-hydroxycarbonyl compound represented by formula (3): comprising a step of reacting a fluoral equivalent represented by for... | 04/18/2006 |
| 7015358 | Process for the production of ketones A process for the production of aliphatic or alicyclic monoketones or alicyclic diketones of the formula R1—C(═O)—R2 in which R1 is a linear or branched C1-10-alkyl group and R2 is a linear or branched C | 03/21/2006 |
| 6987203 | Process for the preparation of phytone A process for the preparation of a novel intermediate compound useful in the preparation of phytone and vitamin E. ... | 01/17/2006 |
| 6971576 | GENERALIZED METHOD OF SPECKLE-NOISE PATTERN REDUCTION AND PARTICULAR FORMS OF APPARATUS THEREFOR BASED ON REDUCING THE SPATIAL-COHERENCE OF THE PLANAR LASER ILLUMINATION BEAM AFTER IT ILLUMINATES THE TARGET BY APPLYING SPATIAL INTENSITY MODULATION TECHNIQUES DURING THE DETECTION OF THE REFLECTED/SCATTERED PLIB A planar laser illumination and imaging (PLIIM) based camera system capable of producing digital images with reduced levels of speckle-pattern noise. The PLIIM based camera system comprises a planar laser illumination array (PLIA) including a plurality of laser diod... | 12/06/2005 |
| 6969776 | Process for producing fluorinated ketone The present invention provides a process whereby fluorinated ketones of various structures can be produced by short process steps and which is useful as an industrial production process. Namely, it is a process for producing a fluorinated ketone of the follow... | 11/29/2005 |
| 6933413 | Processes for preparation of hexafluoroacetone and its hydrate The present invention provides a process for the preparation of hexafluoroacetone characterized by bringing hexafluoro-1,2-epoxypropane into contact with at least one catalyst selected from the group consisting of titanium oxide catalysts and fluorinated titanium ox... | 08/23/2005 |
| 6872854 | Complexes of metal salts of organic acids and beta-diketones and methods for producing same Metal salts of organic acids complexed with β-diketone compounds are multifunctional complexes useful in the formulation of stabilizers for halogenated resins. These complexes may be used jointly with other low toxicity intermediates, such as zinc or magnesium inte... | 03/29/2005 |
| 6803488 | Process for producing fluorinated ketone The present invention provides a process whereby fluorinated ketones of various structures can be produced by short process steps and which is useful as an industrial production process. Namely, it is a process for producing a fluorinated ketone of the follow... | 10/12/2004 |
| 6720456 | Process for the preparation of 2,3-pentanedione The present invention relates to a novel process for the preparation of 2,3-pentanedione starting with hydroxyacetone and paraldehyde. ... | 04/13/2004 |
| 6703528 | Process for producing carbonyl or hydroxy compound There are disclosed are a method for producing at least one compound selected from a carbonyl compound and a hydroxy adduct compound by an oxidative cleavage or addition reaction of an olefinic double bond of an olefin compound, which contains rea... | 03/09/2004 |
| 6639112 | Method for preparing ketones by pyrogenic reaction of aldehydes, alcohols, acids or esters The invention concerns a method for preparing ketones of formula (I) wherein A and B are as defined in claim 1, consisting of reacting at a temperature ranging between 250 and 500° C. a compound of formula (II): A--X with a compound of formula (III): B--... | 10/28/2003 |
| 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 |
| 6410795 | Process for base-promoted condensation reactions and base reagent therefor A method for the preparation of 1,3-diketones is disclosed wherein the method comprises the steps of: (A) mixing an alkali metal base with a hindered alcohol in an aromatic hydrocarbon solvent; (B) boiling the mixture and azeotropically distilling water formed... | 06/25/2002 |
| 6329554 | Continuous preparation of unsaturated ketones Process for the continuous preparation of unsaturated ketones of the formula I ##STR1## where the dashed line can be an additional C--C bond, R1 is an alkyl, and R2 is an aliphatic hydrocarbon having from 1 to 37 carbons, a cycl... | 12/11/2001 |
| 6303823 | Process for preparing ketones, in particular 6-methylheptan-2-one A process for preparing ketones by so-called "crossed aldol condensation" of a ketone with an aldehyde in the presence of a catalyst system consisting of approximately equimolar amounts of a secondary amine and of a carboxylic acid containing at least 2 C... | 10/16/2001 |
| 6300524 | Process for preparing higher unsaturated ketones The present invention relates to an improved process for preparing higher unsaturated ketones by reacting the corresponding ,ଲ-unsaturated alcohols with alkyl acetoacetates in a Carroll reaction , in a reactor system with fitted fractionation... | 10/09/2001 |
| 6300522 | Process for the preparation of 2-hydroxyalkyl halophenones A process is provided for the preparation of compounds of Formula (1): ##STR1## wherein X1 and X2 are each independently H, Cl or F, provided that at least one of X1 and X2 is Cl or F; one of R1 and R... | 10/09/2001 |
| 6143935 | Process for the preparation of 1,3-dicarbonyl compounds The condensation reaction of a ketone with either an ester or a carbonate to form, respectively, a 1,3-diketone or a ଲ-ketoester often affords poor results under the standard condensation reaction conditions. High yields and high purities of the des... | 11/07/2000 |
| 6034279 | Method for the production of γ, δ-unsaturated ketones by reacting tertiary allyl alcohols with alkenyl alkyl ethers An improved process is described for preparing γ,δ-unsaturated ke-tones, which are in demand as aroma substances and intermediates for vitamins and carotenoids, by reacting tertiary allyl alcohols and alkenyl alkyl ethers in the presence of acid catalys... | 03/07/2000 |
| 5925796 | Method to de-couple methyl isobutyl ketone and diisobutyl ketone co-produced from acetone and/or isopropyl alcohol A method for the catalytic manufacture of MIBK and DIBK from DMK and/or IPA (optionally in the presence of water) while obtaining improved control over the ratio of DIBK to MIBK in the product stream, comprising reacting, in the presence of an aldol conde... | 07/20/1999 |
| 5618982 | Catalytic C-alkylation of ketones Ketones having at least one hydrogen atom or ester group in the -position with respect to a ketonic carbonyl group thereof, for example cyclopentanone, 2-methylcyclopentanone and other substituted cyclopentanones, are effectively C- or -alky... | 04/08/1997 |
| 5434289 | Process for producing optically active ଲ-hydroxyketone A process for producing an optically active ଲ-hydroxyketone represented by formula (I): ##STR1## by catalytic asymmetrical aldol reaction is disclosed, comprising reacting a silyl-enol ether represented by formula (II): ##STR2## with ... | 07/18/1995 |
| 5354915 | Catalysts for the reduction of carbonylic compounds to alcohols This invention provides an improved process for converting ,ଲ-olefinically unsaturated aldehydic or ketonic compounds into the corresponding allylic alcohol using an alcohol as a hydrogen donor. This process is conducted in the presence of a ... | 10/11/1994 |
| 5276200 | Method of preparing sodium formyl acetone and 4,4-dimethoxy-2-butanone The present invention provides a method of preparing sodium formyl acetone using acetone, methyl formate and sodium methoxide as raw materials. A mixture consisting of an acetone and a methyl formate is supplied to a methanol solution of sodium methoxide,... | 01/04/1994 |
| 5231232 | Method of preparing C-18 ketones used in the manufacture of Vitamins E and K Methods of forming unsaturated C-18 ketones which can be used in the synthesis of Vitamins E and K1 are disclosed. One procedure involves coupling a C-9 primary allylic halide to a carbonyl-group-containing C-9 terminal alkyne. A second, two-st... | 07/27/1993 |
| 5202460 | Terpene derivatives, their preparation and their use Terpene derivatives of formula I, their preparation and their use. In formula I, R represents a hydrogen atom or an alkanoyl radical and R' represents a hydrogen atom or an aliphatic hydrocarbon radical. ##STR1##... | 04/13/1993 |
| 5159117 | Preparation of ,-dialkoxy ketones A process for preparing ,-dialkoxy ketones of the formula I ##STR1## where R1 and R2 are each, independently of one another, hydrogen, C1 -C20 -alkyl, C3 -C20 -cycloalkyl, C | 10/27/1992 |
| 4980513 | Process for making a hydrocarbyl vinyl ketone A process for making a hydrocarbyl vinyl ketone is disclosed. In this process a ketone having the structural formula CH3 COR, where R is lower alkyl, phenyl or C7 -C8 aralkyl, is reacted with methanol in an oxygen-containi... | 12/25/1990 |
| 4825008 | Acetylketene dialkyl acetals and a process for their preparation The invention relates to a process for the preparation of acetylketene dialkyl acetals of the formula CH3 CO--CH.dbd.C(OR2)2 in which R2 can be an alkyl radical with 1 to 12 carbon atoms, and also these compound... | 04/25/1989 |
| 4739122 | Preparation of ketones A process to produce Methyl Amyl Ketone heterogeneously via the cross-aldol condensation reaction between a C3 (isopropanol or acetone feed) and a C4 (butanol or butyraldehyde feed). The catalyst, hydrogen reduced copper oxide on gam... | 04/19/1988 |
| 4727196 | Production of higher carbonyl compounds from lower alcohols Higher carbonyl compounds are prepared from C1 to C8 cyclic or acyclic alcohols containing at least one active hydrogen atom bonded to the beta carbon atom or readily convertible thereto under the reaction conditions by reacting the ... | 02/23/1988 |
