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| Number | Title | Issue Date |
| 7407707 | Radiation-curable coatings for metal substrates from multifunctional acrylate oligomers The invention detailed herein comprises a family of radiation-curable coating formulations specifically for metal substrates. These coating formulations are based on multifunctional acrylate resins formed by the reaction of acrylate monomers and oligomers with ÿ-ke... | 08/05/2008 |
| 7355065 | Process for the preparation of 4,4-difluoro-3-oxobutanoic acid esters The present invention relates to a process for the preparation of a compound of the formula (I), wherein R is C1−12 alkyl, by the contact of a compound of the general formula (II), wherein R1 and R2 are each, independently, C1... | 04/08/2008 |
| 7311893 | Amyloid targeting imaging agents and uses thereof Amyloid-targeting imaging agents such as radiolabeled amyloid targeting molecules and amyloid targeting molecule-chelator conjugates for imaging, e.g., amyloid plaques in vivo, and/or for the treatment of amyloidosis disorders. The invention provides amyloid-targeti... | 12/25/2007 |
| 7160925 | Decomposing surfactant Use of a compound having a hydrophobic moiety attached to a hydrophilic moiety, wherein the hydrophilic moiety comprises a β-keto acid group and the hydrophobic moiety is attached via a bond from a carbon or an oxygen of the hydrophobic moiety to a carbon of the β... | 01/09/2007 |
| 6878845 | Oligomers from multifunctional acrylates Oligomers from multifunctional acrylates and organonitro compounds are provided. Films obtained from crosslinked oligomers of the present invention are useful as protective or decorative coatings as well as components in adhesives and composites. ... | 04/12/2005 |
| 6743942 | Process for the transesterification of keto ester with alcohol using polyaniline salts as catalyst The present invention provides a process for transesterification of ketoester using polyaniline salt as catalyst, said process comprising reacting a keto ester with an alcohol in presence of a catalyst at a temperature range of 50 to 120° C. for a period in the ran... | 06/01/2004 |
| 6677462 | Asymmetric synthesis of kavalactones This invention relates to preparation of enantio-enriched compounds, and more particularly to enantio-enriched kavalactone compounds and derivatives thereof. The methods provide compounds that are useful as reagents, or building blocks, in the constructio... | 01/13/2004 |
| 6620967 | Ketosis-treating agent A ketosis-treating agent comprising, as an active ingredient, at least one amino acid selected from valine, isoleucine, serine, glutamine and glutamic acid, or a peptide or protein comprising at least one amino acid selected from valine, isoleucine, serin... | 09/16/2003 |
| 6593488 | 4-fluoro-3-oxocarboxylic esters and process for producing the same The present invention is to provide 4-fluoro-3-oxocarboxylates represented by the following formula (1): ##STR1## wherein R1 represents an alkyl group or an aryl group; R2 and R3 each represent a hydrogen atom or an alkyl group... | 07/15/2003 |
| 6489505 | Process for producing 3,3-dimethyl-2-formylcyclopropane-carboxylic acid ester There is provided a process for producing 3,3-dimethyl-2-formylcyclopropanecarboxylic ester of formula (1): ##STR1## wherein R represents an alkyl group, a cycloalkyl group or an optionally substituted aralkyl group, which comprises reacting chrysanthemic... | 12/03/2002 |
| 6486345 | Method for producing 6,6-dialkoxy-5-hydroxy-3-oxo-hexanoic acid esters A method for producing 6,6-dialkoxy-5-hydroxy-3-oxo-hexanoic acid esters of general formula (I), wherein the dianion of an acetoacetic acid alkyl ester is reacted with an aldehyde. The 6,6-dialkoxy-5-hydroxy-3-oxo-hexanoic acid esters of general formula (... | 11/26/2002 |
| 6469200 | Process for producing 2-alkylidene-4-bromoacetoacetic acid ester A process for producing a 2-alkylidene-4-bromoacetoacetic acid ester of the formula (3): ##STR1## wherein R1 and R2 each independently represent a lower alkyl group having 1-5 carbon atoms, the process is characterized by reacting a ... | 10/22/2002 |
| 6457303 | Synthesis of epothilones Various epothilone precursors needed for the preparation of final epothilones are provided.... | 10/01/2002 |
| 6455728 | Direct fluorination process for preparing high purity 2-fluoro-1,3-dicarbonyl compounds using oxygen as a radical scavenger A process for fluorinating ଲ-dicarbonyls to form the corresponding -fluorinated-ଲ-dicarbonyl compounds is provided. The process is represented by the following reaction scheme: ##STR1## where R1 is H, alkyl or alkoxy, R2... | 09/24/2002 |
| 6376719 | Process for the preparation of alkaline earth metal salts of ଲ-diketo compounds An alkaline earth metal salt of ଲ-diketo compound is produced using 1 mol of a powdery alkaline earth metal compound and 2.04 mol or more of an aliphatic ଲ-diketo compound. The reaction may be carried out while supplying both components to a r... | 04/23/2002 |
| 6355713 | ଲ-ketoesters for use as polymer stabilizers ଲ-Ketoesters and their enamines derived from alcohols or polyols are suitable for stabilizing polymers, and are represented by formulae: A[(O--CHR4 --Z--CHR5)m --O--CO--CHR1 --CO--R3 ]n | 03/12/2002 |
| 6300511 | Catalyzed fluorination of carbonyl compounds The present invention provides a method of substituting a carbonyl compound with fluorine at the -position, comprising reaching the carbonyl compound with a fluorinating present of a metal-containing catalyst. The reaction results in replacement of... | 10/09/2001 |
| 6258977 | Alkyl3-oxoalkanoates An alkyl 3-oxoalkanoate, a process for preparation and use for the synthesis of fatty hydroxylated amino acids, fatty amino alcohols and ceramides.... | 07/10/2001 |
| 6207856 | Therapeutic compositions Compositions comprising ketone bodies and/or their metabolic precursors are provided that are suitable for administration to humans and animals and which have the properties of, inter alia, (i) increasing cardiac efficiency, particularly efficiency in use... | 03/27/2001 |
| 6093844 | Method of producing alkaline-earth salts of aliphatic ଲ-keto compounds Proposed is a method of producing alkaline-earth salts of aliphatic ଲ-keto compounds by reacting alkaline-earth hydroxides with aliphatic ଲ-ketoesters and/or ଲ-diketones in the absence of solvent to give the corresponding alkaline-earth ... | 07/25/2000 |
| 6090975 | Process for the preparation of 2-acetylcarboxylic esters Process for the preparation of 2-acetylcarboxylic esters by reacting an acetoacetic ester having 1 to 6 C atoms in the alkyl moiety with an aliphatic aldehyde having 1 to 12 C atoms at 0 to 40° C. in the presence of a condensation catalyst, subsequently ... | 07/18/2000 |
| 6049010 | Method of preparing 3-(3-methyl-2-buten-1-yl)-2,4-pentanedione and related dicarbonyl compounds A method for preparation of a dicarbonyl compound of the following formula ##STR1## by reacting a conjugated alkadiene compound of the formula ##STR2## with a 1,3-dicarbonyl compound of the formula ##STR3## in the presence of an acid cataly... | 04/11/2000 |
| 6025410 | Liquid oligomers containing acrylate unsaturation The liquid oligomeric compositions of this invention are made by the Michael addition reaction of acetoacetate functional donor compounds with multifunctional acrylate receptor compounds where the equivalent ratios of multifunctional acrylate to acetoacet... | 02/15/2000 |
| 6020502 | Preparation of fluorinated dicarbonyls A method for the fluorination of 1,3-diketones and 1,3-ketoesters is disclosed.... | 02/01/2000 |
| 5932761 | Process for producing branched aldehydes It is provided a process for industrially advantageously producing a branched aldehyde represented by the formula; ##STR1## wherein Y represents an acyl group of two or more carbon atoms; and X represents an acyloxymethyl group represented by --CH | 08/03/1999 |
| 5786501 | Process for the preparation of pure alkyl alkylacetoacetates A process for the purification of alkyl alkylacetoacetates of the general formula: ##STR1## in which R1 is a C1 -C10 -alkyl group and R2 is a C1 -C4 -alkyl group. In the process, an al... | 07/28/1998 |
| 5756826 | Process for preparing acetoacetates A process for preparing acetoacetates of the general formula: ##STR1## They are prepared by the addition of diketene onto an alcohol of the general formula: HO--R1 --Y II and further reaction of the ad... | 05/26/1998 |
| 5720865 | Process for the preparation of keto compounds Keto compounds are prepared by a condensation reaction in which an enolate is formed, and then a protonation in which the free keto compound is produced. In accordance with the invention, both condensation and protonation are carried out in one step by el... | 02/24/1998 |
| 5679830 | Method of producing pivaloylacetic acid ester A pivaloylacetic acid ester is prepared at a high yield by decarbonylating a pivaloylpyruvic acid ester in gas or liquid phase in the presence of an inorganic oxide catalyst which comprises aluminum in an amount of 10% by weight or more in terms of alumin... | 10/21/1997 |
| 5599813 | Thiazolopyrimidine derivatives Thiazolopyrimidine derivatives represented by the formula ##STR1## and salts thereof are provided, which are characterized by a carboxamide residue substituted with R4 and R5. The derivatives and salts thereof exhibit antiangiog... | 02/04/1997 |
| 5569778 | Process for preparing fluorine-containing dicarbonyl compound A process for preparing a fluorine-containing dicarbonyl compound of the formula: R1 COCFR2 COR3 in which R1 is a hydrogen atom, or a substituted or unsubstituted alkyl or aryl group; R2 is a hydrogen... | 10/29/1996 |
| 5516933 | Lactone-modified diketene(meth)acrylate compound, a process for the preparation thereof, and a (co)polymer Disclosed are a novel lactone-modified diketene (meth) acrylate compound having an active methylene group in the molecule and a process for the preparation thereof.... | 05/14/1996 |
| 5453464 | Thermosetting coating compositions This invention provides the use and preparation of certain 2,2'-diacetyl-bisacetoacetates and bis(beta-ketoesters). These compounds are useful in coating formulations as crosslinkers in conjunction with polyester, acrylic and/or other hydroxylated resins ... | 09/26/1995 |
| 5446195 | Water-soluble active methylenes as formaldehyde scavengers A formaldehyde scavenger composition consisting of a water-soluble compound of the formula, wherein ##STR1## --R and R' are the identical or different and are methyl or ##STR2## where m=1-3 and n=1-19, --Y is CH2 or --CH2--CO--CH2 and M and N ar... | 08/29/1995 |
| 5326378 | Tris (2-acetoacetoxy ethyl)-amine, and its hydrosoluble salts, preparation process, use as formaldehyde collectors and finishing process for fabrics Tris(2-acetoacetoxy ethyl)-amine, and its hydrosoluble mineral or organic acid salts, preparation process, use as formaldehyde collectors, and finishing process for fabrics based on cellulose fibres.... | 07/05/1994 |
| 5260424 | B-(keto or sulfonyl) esters from reaction of silylketene acetal and acyl or sulfonyl compound Silylketene acetals, including "living" GTP polymers, are acylated or sulfonylated in the presence of GTP-effective catalysts with acyl or sulfonyl compounds to produce ଲ-ketoesters or ଲ-sulfonylesters; polymeric products, including capped, co... | 11/09/1993 |
| 5254637 | Thermosetting coating compositions Disclosed are certain novel 2,2'-bisacetoacetates useful as crosslinking agents and a process for the preparation therefor. Also provided are novel enamel compositions containing the crosslinkers and coatings and articles coated with thermosetting coating... | 10/19/1993 |
| 5206419 | 3-hydroxy-2,2-dimethylpropyl 3-hydroxy-2,2-dimethylpropanoate bis(acetoacetate) Process for the preparation of acetoacetates and other ଲketoesters is provided, involving reaction of nitrogen, oxygen or sulfur nucleophiles with a tertiaryalkyl acetoacetate or tertiaryalkyl ଲ-ketoester.... | 04/27/1993 |
| 5200553 | Biologically active carboxylic acid esters Biologically active carboxylic acid esters which promote antitumor or immune response are selected from the group consisting of compounds having formulas (I), (II) and (III): XCH2 --CHX--CHX--C(.dbd.O)--O--Z (I) CH3 -... | 04/06/1993 |
| 5194674 | Water-soluble active methylene as formaldehyde scavenger A formaldehyde scavenger composition consisting of a watersoluble compound of the formula ##STR1## wherein, - R and R' are the identical or different and are methyl or --H[O(CH2)m ]n --O--, where m=1--3 and n=1--19 an... | 03/16/1993 |
