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Class Information
Number: 549/374
Name: Organic compounds -- part of the class 532-570 series > Organic compounds (class 532, subclass 1) > Heterocyclic carbon compounds containing a hetero ring having chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) or nitrogen as the only ring hetero atoms (class 540, subclass 1) > Oxygen containing hetero ring (e.g., dioxirane, etc.) > The hetero ring is six-membered > Plural ring oxygens in the hetero ring (e.g., 1,2-dioxin, etc.) > The ring oxygens are in the 1,3-positions of the hetero ring (e.g., 1,3 dioxane, etc.) > Chalcogen attached indirectly to the hetero ring by nonionic bonding
Description: Compounds in which chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) is attached indirectly to the hetero ring by nonionic bonding.










Sub-classes under this class:

Class Number Class Name Patents
549/375 The chalcogen, x, is in a -c(=x)- group 177


Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8536196 Substituted 1,3-dioxanes useful as PPAR modulators Sep. 17, 2013
8372975 Liquid crystal compound having difluoropropenyleneoxy bonding group Feb. 12, 2013
8324407 Alcohol compound having dioxane structure and process for producing same Dec. 4, 2012
8197709 Liquid-crystalline compounds Jun. 12, 2012
8187494 Four- or five-ring liquid crystal compound having lateral fluorine, liquid crystal composition, and liquid crystal display device May. 29, 2012
8021571 Chiral reactive mesogen mixture Sep. 20, 2011
7951432 Five-ring liquid crystal compound having cyclohexane ring, liquid crystal composition, and liquid crystal display device May. 31, 2011
7951433 Five-ring liquid crystal compound having CF.sub.2O bonding group, liquid crystal composition, and liquid crystal display device May. 31, 2011
7915431 Process for production of flake-like dried 2-(5-ethyl-5-hydroxymethyl-1,3-dioxan-2-yl)-2-methylpropan-1-ol Mar. 29, 2011
7767277 Fluorophenyl compounds for liquid-crystalline mixtures Aug. 3, 2010
7468462 Therapeutic agents for the treatment of cancer, metabolic diseases and skin disorders Dec. 23, 2008
7456300 Process of producing dioxane glycol Nov. 25, 2008
7402685 Process of producing dioxane glycol Jul. 22, 2008
7109381 Aldehydes containing a difluorooxymethylene bridge Sep. 19, 2006
7097887 Liquid crystal compounds Aug. 29, 2006
7025901 Alkyl and aryl trifluoromethoxytetrafluorosulfuranes Apr. 11, 2006
6984604 Supported bis(phosphorus) ligands and their use in the catalysis Jan. 10, 2006
6974875 Process for preparing intermediates for the manufacture of discodermolide and discodermolide analogues Dec. 13, 2005
6870059 Process for the preparation of 2-(6-substituted-1,-3-dioxane-4-yl)acetic acid derivatives Mar. 22, 2005
6827876 Difluoromethyl ether derivative and process for producing the same Dec. 7, 2004
6812352 Multidentate phosphite ligands, catalytic compositions containing such ligands, and catalytic processes utilizing such catalytic compositions Nov. 2, 2004
6716491 Liquid-crystalline medium Apr. 6, 2004
6632484 Dialkyne compounds Oct. 14, 2003
6610892 Process for preparing 2,7-dimethyl-2,4,6-octatrienal monoacetals Aug. 26, 2003
6548681 Process for the recovery of a polyol from an aqueous solution Apr. 15, 2003
6528538 Cyclic compounds useful in the treatment of dyslipidaemia, atherosclerosis and diabetes, pharamaceutical compositions and preparation process Mar. 4, 2003
6515149 Acetal compound, polymer, resist composition and patterning response Feb. 4, 2003
6472570 Method for the asymmetric dihydroxylation of olefins, using osmium catalysts Oct. 29, 2002
6433124 Reactive polymers and isocyanate-reactive polymers obtainable therefrom Aug. 13, 2002
6365755 Ammonium 3,5,6-trihydroxyhexanoate derivatives and preparation process thereof Apr. 2, 2002
6316679 Treatment of a composition comprising a trimethylolalkane bis-monolinear formal Nov. 13, 2001
6303194 Acetylene derivatives, and liquid-crystalline medium Oct. 16, 2001
6207835 Process for the preparation of arylmetal compounds and their reaction with electrophilic reagents Mar. 27, 2001
6177154 Alkoxybenzene derivative, liquid-crystal composition, and liquid-crystal display element Jan. 23, 2001
6124005 Fluoro-substituted alkyl ether compounds, liquid crystal compositions and liquid crystal display devices Sep. 26, 2000
6121184 Supported bis(phosphorus) ligands Sep. 19, 2000
6096905 Treatment of a composition comprising a trimethylolalkane bis-monolinear formal Aug. 1, 2000
6051288 Fluorine-substituted liquid-crystal compound, liquid-crystal composition and liquid-crystal display device Apr. 18, 2000
6020503 Process for producing 1,4-benzodioxane derivatives Feb. 1, 2000
5969154 Liquid crystalline diketopyrrolopyrroles Oct. 19, 1999
5932667 Reactive adducts of vinyldioxo compounds Aug. 3, 1999
5917059 Preparation of cyclic acetals or ketals Jun. 29, 1999
5911912 Halovinyl ethers Jun. 15, 1999
5877332 Reactive adducts of vinyldioxo compounds Mar. 2, 1999
5817839 Double-chain type sulfated compounds having acid degradability and process for producing the same Oct. 6, 1998
5789605 Synthetic techniques and intermediates for polyhydroxy, dienyl lactones and mimics thereof Aug. 4, 1998
5753471 Biotechnological perparation of alcohols, aldehydes and carboxylic acids May. 19, 1998
5739374 Processes of preparing diphenylheteroalkyl derivatives Apr. 14, 1998
5670666 Process for preparing intermediates for the synthesis of D1 antagonists Sep. 23, 1997
5656619 Diphenylheteroalkyl derivatives, the preparation thereof and drugs and cosmetics prepared therefrom Aug. 12, 1997

1 2 3 4










 
 
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