Class 568/394 - The halogen and the aldehyde or ketone are in the same reactant

Subclass of Class 568 - Organic compounds -- part of the class 532-570 series
Definition: Processes wherein the compound is prepared by reacting a
No. of patents: 32
Last issue date: 04/05/2011

Number	Title	Issue Date
7919657	Process for dehydration of hexafluoroacetone hydrate To provide a process for producing anhydrous hexafluoroacetone from hexafluoroacetone hydrate. To provide a process taking environment into consideration, that does not require a treatment of wastes, such as waste sulfuric acid, containing organic substances, which ...	04/05/2011
7361790	Process for preparing 1,3-dichloroacetone Epichlorohydrin is produced from acetone by (1) chlorinating acetone to form monochloroacetone; (2) disproportionating the monochloroacetone in the presence of a platinum catalyst, a strong acid and preferably a chloride source (for example, added as a salt or from ...	04/22/2008
7067702	Process for preparing vinyl substituted beta-diketones A process for preparing vinyl substituted beta-diketones includes reacting a halogen-containing beta-diketone with an olefin in a reaction zone under Heck coupling reaction conditions in the presence of a catalyst, a base, and an organic phosphine to provide a vinyl...	06/27/2006
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
7002043	Process for producing 1,1,1-trifluoroacetone The invention relates to a process for producing 1,1,1-trifluoroacetone, which is useful as an intermediate of pharmaceuticals and agricultural chemicals, or as a reagent for introducing fluorine-containing groups. This process includes the step of conducting a hydr...	02/21/2006
6774266	Process for producing 1,1,1-trifluoroacetone A process for producing 1,1,1-trifluoroacetone includes the step of conducting in a gas phase a hydrogenolysis of a tetrafluoroacetone, which is represented by the general formula [1], by a hydrogen gas in the presence of a catalyst containing a transition metal,	08/10/2004
6548712	Process for producing 1,1,1,5,5,5-hexafluoroacetylacetone The invention relates to a process for producing 1,1,1,5,5,5-hexafluoroacetylacetone. This process includes (a) hydrolyzing a metal complex of 1,1,1,5,5,5-hexafluoroacetylacetone into a 1,1,1,5,5,5-hexafluoroacetylacetone hydrate; and (b) dehydrating the ...	04/15/2003
6342640	Process for producing 1,1,3,3-tetrachloro-1,3-difluoroacetone The invention relates to a process for producing 1,1,3,3-tetrachloro-1,3-difluoroacetone. This process includes fluorinating hexachloroacetone in a liquid phase by hydrogen fluoride in the presence of a catalyst containing a metal compound. This metal ...	01/29/2002
6340776	Process for producing 1,1,1-trifluoroacetone A process for producing 1,1,1-trifluoroacetone includes the step of conducting a hydrogenolysis of a halogenated trifluoroacetone, which is represented by the general formula (1), by a hydrogen gas in the presence of a catalyst containing a transition met...	01/22/2002
6262312	Process for producing 1,1,1-trifluoroacetone The invention relates to a process for producing 1,1,1-trifluoroacetone. This process includes reacting a halogenated acetone with a metal in the presence of a proton donor. This halogenated acetone is represented by the general formula (1): ##STR1##...	07/17/2001
6177595	Process of producing chlorofluoroacetones A process of producing chlorofluoroacetones represented by a general formula ##STR1## where X represents independently chlorine atom or fluorine atom. The production process comprises fluorinating in a liquid phase pentachloroacetone by hydrogen fluo...	01/23/2001
5481029	Process for preparation of ketones A process for preparing ketones, for example CF3 C(O)CH3, CF3 C(O)CH2 C(O)CF3 and CF3 C(O)CF2 H, in which ଲ-ketoesters are transesterified and decarboxylated using a carbox...	01/02/1996
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
5391811	Process for the preparation of ଱-fluoro-ଲ-dicarbonyl compounds ଱-fluoro-ଲ-dicarbonyl compounds are prepared by reacting a halogenated dicarbonyl compound at temperatures of 20° to 100° C. with an addition product of hydrogen fluoride and a trialkylamine. This process is easy to carry out in technical te...	02/21/1995
5349107	Process for producing optically active γ-hydroxyketones Disclosed herein is a process for producing a γ-hydroxyketone (2), which comprises asymmetrically hydrogenating a γ-diketone (1) in the presence of a ruthenium-optically active phosphine complex as a catalyst ##STR1## wherein R1 and R	09/20/1994
5288915	Process of making ketones Ketones are prepared by admixing at least one gem-dichloro compound with at least one acid such that the ketone wherein the keto-oxygen replaces the gem-dichloro group is formed. The reaction is exemplified by the reaction of 9,9-dichlorofluorene with an ...	02/22/1994
5250740	Precursors for metal fluoride deposition and use thereof A method for forming a layer of a Group II or III fluoride on a semiconductor substrate (e.g. as epitaxial insulating layer) comprising vaporising a precursor (I), where M is Be, Ca, Sr, Ba or lanthanide, b and d are 0 or 1. A, B, C and D are independentl...	10/05/1993
5164517	Process for preparing fluoropolyethers and perfluoropolyethers having neutral or functional end groups and a controlled molecular weight This invention relates to a process for preparing fluoropolyethers and perfluoropolyethers having neutral and/or functional end groups and a lower molecular weight by a selective catalytic cleavage of the corresponding higher molecular weight fluoropolyet...	11/17/1992
4906414	Chlorinated ଲ-ketoesters New chlorinated ଲ-ketoesters of the formula: ##STR1## wherein R represents alkyl of 1 through 6 carbon atoms or alkenyl of 2 through 6 carbon atoms, and R1 represents alkyl of 1 through 4 carbon atoms, their preparation and their use...	03/06/1990
4845301	Process for the preparation of ଱-hdroxyketones A process for the preparation of ଱-hydroxyketones ##STR1## having a high purity in a good yield from a compound ##STR2## by rearrangement reaction in aqueous alkaline solution, where R1 and R3 each represent an alkyl,...	07/04/1989
4837365	Chlorinated ଲ-ketoesters, their preparation and their use New chlorinated ଲ-ketoesters of the formula: ##STR1## wherein R represents alkyl of 1 through 6 carbon atoms or alkenyl of 2 through 6 carbon atoms, and R1 represents alkyl of 1 through 4 carbon atoms, their preparation and their use...	06/06/1989
4579974	Catalytic process for the preparation of hexafluoroacetone Disclosed is a continuous catalytic process for the preparation of hexafluoroacetone comprising reacting in a first fluorination step a mixture of hydrofluoric acid and a chlorofluoroacetones recyclate, then in a second fluorination step, a mixture contai...	04/01/1986
4385185	ଲ-γ-Unsaturated ketones and isoprenoid 2,6 diones, a process for producing the same and their use as fragrant and flavoring substances Compounds of the general formula I: ##STR1## wherein R1 and R2 are equal or different alkyl-, alkoxyalkyl-, or aryl groups, or together form a ring; R3 is an allyl or benzyl radical; and R4 and R5	05/24/1983
4267381	Preparation of side-chain fluorinated 3,3-dimethyl-butan-2-one A fluorine derivative of 3,3-dimethyl-butan-2-one, of the formula ##STR1## in which X is hydrogen or fluorine, is produced by reacting a metal fluoride in a diluent and at elevated temperature with a sulphonic acid ester of the formula ##STR2## ...	05/12/1981
4254132	Combating fungi with 2-acyloxy-1-azolyl-3,3-dimethyl-2-phenoxy-butanes A 2-acyloxy-1-azolyl-3,3-dimethyl-2-phenoxy-butane of the formula ##STR1## in which A represents a nitrogen atom or the CH group, R represents alkyl, alkenyl, alkynyl, alkoxy, alkoxyalkyl, cycloalkyl, halogenoalkyl, optionally substituted phenyl, optional...	03/03/1981
4251467	Continuous preparation of chloroacetone Symmetrical 1,3-dichloroacetone is prepared by contacting chlorine with an aqueous mixture of acetone, monochloroacetone, or mixtures thereof and an iodine-containing promoter....	02/17/1981
4229470	Compounds having a trichloromethylic end group having a juvenile hormone action on insects and acaricide activity Compounds are disclosed which have a juvenile hormone action on insects and also exhibit acaricide action. Said compounds are unsaturated aliphatic compounds having a trichloromethyl end group and the other end group of which is a phenol group which may b...	10/21/1980
4195038	Preparation of 3-bromo-2-hydroxy-4,4,5,5-tetramethylcyclopenta-2-enone Bromination of large batches of 2,6-dimethyl-2,5-heptadiene-4-one below -20° C. followed by dehydrobromination without intermediate isolation and recrystallization to produce 3,5-dibromo-2,6-dimethyl-2,5-heptadiene-4-one which can be cyclized withou...	03/25/1980
4174349	Preparation of fluoroorganic compounds with calcium fluoride Fluoroorganic compounds are prepared by reacting a haloorganic starting material in which at least one halo atom is replaceable with a fluorine atom by metathetical exchange, with calcium fluoride in the presence of a crown ether and an anhydrous, polar, ...	11/13/1979
4088697	଱-Oxy(oxo) sulfides and ethers Described are ଱-oxy(oxo) sulfides and ethers having the generic structure: ##STR1## wherein X is one of: ##STR2## Z is one of sulfur or oxygen; when R1 and R2 are taken separately, R1 is hydrogen or me...	05/09/1978
3994953	Ethyl Z- and E-2-vinyl-2-methylcyclobutanecarboxylate The present invention is concerned with a method for preparing grandisol, the major component of the boll weevil sex pheromone. This method involves the conversion of 4-chloro-2-butanone to 5-chloro-3-methyl-1-penten-3-ol, acid-catalyzed isomerization of ...	11/30/1976
3978145	Use of hexagonal chromium (111) oxide hydroxide catalyst in fluorination process An improved process for the reaction of halogenated aliphatic compounds with HF using hexagonal --CrOOH as the catalyst to produce fluorine containing aliphatic compounds....	08/31/1976

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Class 568/394 - The halogen and the aldehyde or ketone are in the same reactant