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Class Information
Number: 568/461
Name: Organic compounds -- part of the class 532-570 series > Organic compounds (class 532, subclass 1) > Oxygen containing (e.g., perchlorylbenzene, etc.) > Aldehydes > Acyclic > Processes > Aldehyde reactant > Carbon to carbon unsaturation in the aldehyde prepared > Aldehyde reacted with aldehyde
Description: Processes wherein an aldehyde containing carbon to carbon unsaturation is prepared by reacting two or more aldehydes.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8686195 Method for synthesizing acrolein from glycerol Apr. 1, 2014
8581008 Process for preparing .alpha.,.beta.-unsaturated C.sub.10-aldehydes Nov. 12, 2013
8563782 Producing .alpha.,.beta.-unsaturated aldehydes by means of a reaction mixing pump Oct. 22, 2013
7767770 Process for the oxidative dehydrogenation of ethane Aug. 3, 2010
7732644 Process for producing .alpha.,.beta.-unsaturated aldehyde compounds Jun. 8, 2010
7632973 Methods for preparing aldehydes by self-aldol condensation Dec. 15, 2009
7402710 Process for producing chiral hydroxyaldehyde compounds Jul. 22, 2008
7368612 Method of producing high-purity hydroxypivalaldehyde and/or dimer thereof May. 6, 2008
7247755 Process for producing .alpha.,.alpha.-bis(hydroxymethyl)alkanal Jul. 24, 2007
7141702 Process for the synthesis of .alpha.-substituted acroleins Nov. 28, 2006
6586636 Aldol condensation Jul. 1, 2003
6555716 Process for the hydroformylation of olefins Apr. 29, 2003
6437190 Preparation of aldols using a microstructured reaction system Aug. 20, 2002
6433230 Process for conducting an aldol condensation Aug. 13, 2002
6380443 Preparation of 1,3-diols Apr. 30, 2002
6340778 Process for catalytic aldol condensations by means of a multiphase reaction Jan. 22, 2002
5994592 Process for producing 2,2'-bis(hydroxymethyl)alkanal and 2,2'-bis(hydroxymethyl)alkanoic acid Nov. 30, 1999
5888923 Modified Raney nickel catalyst and a process for preparing diols by using the same Mar. 30, 1999
5663452 Process for the preparation of 2-ethyl-1,3-hexane diol Sep. 2, 1997
5434313 Aldolisation-dehydration process Jul. 18, 1995
5386062 Catalytic preparation of condensation products of formaldehyde Jan. 31, 1995
5382700 Oxidative coupling of alpha, beta unsaturated aldehydes Jan. 17, 1995
5371299 Process for the preparation of diethers Dec. 6, 1994
5254743 Solid bases as catalysts in aldol condensations Oct. 19, 1993
5254742 Process for preparing 2-hexene-1,6-dial Oct. 19, 1993
5162552 Preparation of 4-acetals of butene-1,4-dial and novel acetals of butene-1,4-dial Nov. 10, 1992
5055620 Process for aldol condensation Oct. 8, 1991
4943663 Process for the preparation of .alpha.-alkylacroleins Jul. 24, 1990
4851592 Triethylamine catalyzed neopentyl glycol production utilizing a gas sparged reactor Jul. 25, 1989
4835320 Process for the preparation of glyoxal monoactals May. 30, 1989
4740639 Process for preparation of 2,4-disubstituted-1,5-pentanediols Apr. 26, 1988
4739111 Alpha, beta-ethylenically unsaturated acids and derivatives thereof using a multicomponent acidic catalyst composition containing zirconium Apr. 19, 1988
4714784 Method for removing n-butyraldehyde from gas streams Dec. 22, 1987
4701562 Process for the condensation of aldehydes Oct. 20, 1987
4683342 Process for preparing natural benzaldehyde and acetaldehyde, natural benzaldehyde and acetaldehyde compositions, products produced thereby and organoleptic utilities therefor Jul. 28, 1987
4617419 Process for preparing natural benzaldehyde and acetaldehyde, natural benzaldehyde and acetaldehyde compositions, products produced thereby and organoleptic utilities therefor Oct. 14, 1986
4560790 Process for synthesizing .alpha.,.beta.-ethylenically unsaturated products using a multicomponent acidic catalyst composition Dec. 24, 1985
4526884 Ruthenium containing catalyst composition useful for process for the demerization of acrylic compounds Jul. 2, 1985
4519954 Leach resistant catalyst useful for the dimerization of acrylic compounds May. 28, 1985
4496770 Process for the preparation of .alpha.-alkylacroleins Jan. 29, 1985
4408079 Preparation of alpha-alkylacroleins Oct. 4, 1983
4346239 Process for the preparation of 2-methylene aldehydes Aug. 24, 1982
4317945 Process for preparing 2-methyl-2-sec.butyl-1,3-propanediol Mar. 2, 1982
4316990 Preparation of .alpha.,.beta.-aldehydes by aldol condensation Feb. 23, 1982
4283564 Process for preparing methacrolein Aug. 11, 1981
4239657 Manufacture of carbonyl compounds Dec. 16, 1980
4233247 Process for the preparation of 2,2-dimethylolalkanals Nov. 11, 1980
4225726 Catalytic condensation of aldehydes to 1,3-glycol monoesters Sep. 30, 1980
4222965 Method of producing acrolein Sep. 16, 1980
4221876 Isocyanate-reactive mixtures based on formose Sep. 9, 1980

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