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Class Information
Number: 549/428
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 > Halogen attached directly or indirectly to the hetero ring by nonionic bonding
Description: Compounds in which halogen is attached directly or indirectly to the hetero ring by nonionic bonding.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8372306 Liquid crystal compound having negative dielectric anisotropy, liquid crystal composition, and liquid crystal display device Feb. 12, 2013
8187494 Four- or five-ring liquid crystal compound having lateral fluorine, liquid crystal composition, and liquid crystal display device May. 29, 2012
8173350 Oxime compound and resist composition containing the same May. 8, 2012
7977344 Compounds Jul. 12, 2011
7968003 Pyran derivative, its preparation method, liquid crystal composition and liquid crystal display device comprising the same Jun. 28, 2011
7914862 Liquid crystal compound having negative dielectric anisotropy, liquid crystal composition, and liquid crystal display device Mar. 29, 2011
7888519 Pyran compound or at least one derivative thereof Feb. 15, 2011
7846514 Liquid crystal compound, liquid crystal composition and, liquid crystal display device Dec. 7, 2010
7842357 Tetrahydropyran compound, liquid crystal, composition and liquid crystal display device containing the liquid crystal composition Nov. 30, 2010
7651742 Liquid-crystalline medium and liquid-crystal display comprising 1,2-difluoroethene compounds Jan. 26, 2010
7648742 Difluorosubstituted heterocyclic compounds and the use thereof in the form of components in liquid crystalline media Jan. 19, 2010
7638256 Fluorinated cyclic structure-bearing silicon compounds and silicone resins, resist compositions using the same, and patterning process Dec. 29, 2009
7612243 Cyclopenta[b]naphthalene derivatives Nov. 3, 2009
7592407 Polymerizable fluorinated compound, making method, polymer, resist composition and patterning process Sep. 22, 2009
7482044 Liquid crystalline medium and liquid crystal display Jan. 27, 2009
7417059 Substituted aromatic-ring compounds, process for producing the same and use Aug. 26, 2008
7361388 Liquid-crystalline compounds having a tetrahydropyran ring Apr. 22, 2008
7314943 Pyran derivatives containing an exocyclic double bond Jan. 1, 2008
7291367 Liquid-crystalline compounds Nov. 6, 2007
7270856 Cyclobutane derivatives Sep. 18, 2007
7022865 Pyrans as liquid crystals Apr. 4, 2006
6974607 Pyrans as liquid crystals Dec. 13, 2005
6902777 Liquid-crystalline medium Jun. 7, 2005
6825360 Bicyclic aromatic compounds Nov. 30, 2004
6812352 Multidentate phosphite ligands, catalytic compositions containing such ligands, and catalytic processes utilizing such catalytic compositions Nov. 2, 2004
6649227 Difluorovinyl compound, liquid crystal composition and liquid crystal display Nov. 18, 2003
6590110 Method for synthesizing C-glycosides of ulosonic acids Jul. 8, 2003
6472422 Analogs of cocaine Oct. 29, 2002
6458433 Difluorophenyl derivatives, liquid-crystal compounds, and liquid-crystal composition Oct. 1, 2002
6384237 Pyrylium compound, process for making the same, nucleic acid stain, and labeled nucleic acid May. 7, 2002
6331625 Photochromic spirofluorenopyran compounds Dec. 18, 2001
6225466 Photochromic spirofluorenopyran compounds May. 1, 2001
6146718 Liquid crystalline compound having a negative dielectric anisotropy value, liquid crystal composition containing the liquid crystalline compound, and liquid crystal display element produced ut Nov. 14, 2000
6121312 Cyclic ether vitamin D3 compounds and uses thereof Sep. 19, 2000
6008350 Process for the production of cyanine dyes Dec. 28, 1999
5952376 Trienyl compounds Sep. 14, 1999
5760073 Substituted 4H-pyrans Jun. 2, 1998
5753776 Liquid-phase fluorination May. 19, 1998
5723681 3,3-(disubstituted)cyclohexan-1-01 dimers and related compounds Mar. 3, 1998
5674949 Liquid-phase fluorination Oct. 7, 1997
5672767 Process for preparing polyether compounds Sep. 30, 1997
5571870 Liquid phase fluorination Nov. 5, 1996
5539059 Perfluorinated polyethers Jul. 23, 1996
5461117 Liquid phase fluorination Oct. 24, 1995
5384415 Process for the preparation of brominated compounds, especially from alcohols Jan. 24, 1995
5332790 Liquid-phase fluorination Jul. 26, 1994
5322904 Liquid-phase fluorination Jun. 21, 1994
5322903 Liquid-phase fluorination Jun. 21, 1994
5281720 Pyranylphenyl hydroxyalkylnaphthoic acids as inhibitors of leukotriene biosynthesis Jan. 25, 1994
5254581 Pyran derivatives and their use as inhibitors of 5-lipoxygenase Oct. 19, 1993

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