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Class Information
Number: 568/345
Name: Organic compounds -- part of the class 532-570 series > Organic compounds (class 532, subclass 1) > Oxygen containing (e.g., perchlorylbenzene, etc.) > Ketones > Processes of preparing, purifying, or recovering alicyclic ring containing ketones > Aldehyde or ketone reactant > Aldehyde reacted with ketone
Description: Processes wherein the compound is produced by reacting an aldehyde with a ketone.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8519193 Dialkyl phenols Aug. 27, 2013
8097761 Process for production of carotenoid Jan. 17, 2012
7858381 Process for preparing high-purity, halogen-free o-phthaladehyde Dec. 28, 2010
7842841 Process for the preparation of timberone Nov. 30, 2010
7563935 Crystal forms of astaxanthin Jul. 21, 2009
7279605 Synthesis of cyclopentenones Oct. 9, 2007
7227044 Cycloalkanone composition Jun. 5, 2007
6995289 Process for synthesis of alpha, beta-unsaturated ketones Feb. 7, 2006
6979751 Processes for the preparation of higher molecular weight ketones Dec. 27, 2005
6610889 Catalytic compositions and methods for asymmetric aldol reactions Aug. 26, 2003
6603047 Condensation of aldehydes with ketones by multiphase reaction Aug. 5, 2003
6590111 Selective reduction of alkyne compounds Jul. 8, 2003
6541672 Derivatives of benzilidine cyclohexanone, benzilidine cyclopentanone, and benzilidine acetone and their synthesis Apr. 1, 2003
6437190 Preparation of aldols using a microstructured reaction system Aug. 20, 2002
6433230 Process for conducting an aldol condensation Aug. 13, 2002
6339159 Optically active .alpha.-aminonitrile and process for producing .alpha.-amino acid Jan. 15, 2002
6303823 Process for preparing ketones, in particular 6-methylheptan-2-one Oct. 16, 2001
6150561 Method of making carotenoids Nov. 21, 2000
5994589 Process for preparing 2,5,6-trimethyl-2-cyclohexen-1-one Nov. 30, 1999
5654488 Preparation of astaxanthin Aug. 5, 1997
5637774 Process for the production of vinyl carbonyls Jun. 10, 1997
5625099 Preparation of astaxanthin, novel intermediates therefor and the preparation thereof Apr. 29, 1997
5496709 Process for production of canthaxanthin Mar. 5, 1996
5300654 Method for the preparation of unsaturated ketones Apr. 5, 1994
5243081 Aldol condensation dehydration catalyst, a process for preparing the same and a process for preparing an aldol condensation dehydrate using the process Sep. 7, 1993
5210314 Preparation of canthaxanthin and astaxanthin May. 11, 1993
5124486 Process for the preparation of cyclic ketones Jun. 23, 1992
5081309 Preparation of 2-alkylcyclopentanones Jan. 14, 1992
5026919 Base-catalyzed reactions using zeolite catalysts Jun. 25, 1991
5004839 Preparation of unsaturated ketones from acetone and paraformaldehyde (II) Apr. 2, 1991
4992577 Preparation of 3-vinyl-substituted 2,2-dimethylcyclopropane-1-carboxylic acids and esters and intermediates therefor Feb. 12, 1991
4945184 Preparation of unsaturated ketones Jul. 31, 1990
4877904 Bicyclic ketones as odorants and flavorants Oct. 31, 1989
4874900 Preparation of pseudoionones Oct. 17, 1989
4873365 Process for the preparation of isophorone diisocyanate from isophorone dicarbamyl esters using highly selective SnO.sub.2 or CuO catalysts Oct. 10, 1989
4820874 Increasing the yield of 2.5.6-trimethylcyclohex-2-en-1-one Apr. 11, 1989
4704478 Process for the condensation of ketones Nov. 3, 1987
4701562 Process for the condensation of aldehydes Oct. 20, 1987
4668827 Process for preparing 2-(1-hydroxyalkyl) cyclohexanone and/or 2-alkylidene cyclohexanone May. 26, 1987
4622172 Alkyl-substituted spiroundecenone derivatives, organoleptic utility thereof and processes for preparing same Nov. 11, 1986
4543428 Production of a hexahydronaphthalenone compound Sep. 24, 1985
4528400 Preparation of ketones Jul. 9, 1985
4499306 2,2-Dihalo-6-halo-6-(1-haloisobutyl)cyclohexanone Feb. 12, 1985
4476324 Catalyzed aldol condensations Oct. 9, 1984
4448712 Perfume compositions and perfumed articles containing spiro-undecanones and -undecenones as perfume base May. 15, 1984
4424378 Methyl substituted pinyl oxopentenes, organoleptic uses thereof and process for preparing same Jan. 3, 1984
4413145 Process for the synthesis of 3-keto-cyclopentene-5-oxy derivatives having insecticide activity Nov. 1, 1983
4374274 Preparation of .alpha.-methylsubstituted carbonyl compounds Feb. 15, 1983
4335138 Novel carbamates, their preparation, and pharmaceutical formulations containing these compounds Jun. 15, 1982
4334098 Trans,trans-.DELTA.-damascone, mixtures containing major proportions of same, processes for preparing same and organoleptic uses thereof Jun. 8, 1982

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