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Class Information
Number: 546/303
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) > Hetero ring is six-membered consisting of one nitrogen and five carbons > Chalcogen bonded directly to ring carbon of the six-membered hetero ring > Halogen attached directly or indirectly to the six-membered hetero ring by nonionic bonding
Description: Compounds in which halogen is attached directly or indirectly to the six-membered hetero ring by nonionic bonding.










Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
4681942 Process for the production of 3,5-dichloro-2-pyridone Jul. 21, 1987
4678504 O-substituted 3-oxypridinium salts, their preparation and their use as fungicides for crop protection Jul. 7, 1987
4672118 N-(hydrophobe aromatic)pyridinium compounds Jun. 9, 1987
4642199 Novel liquid crystal compounds and liquid crystal compositions containing same Feb. 10, 1987
4595763 Process for preparing methyl ethers or thioethers of aryl compounds Jun. 17, 1986
4594422 Selective halogenation of 6-hydroxy picoline derivatives Jun. 10, 1986
4549901 2-[4-(Substituted aryl)phenoxy]-N-substituted-phenylsulfonyl propionamides having herbicidal properties Oct. 29, 1985
4546190 Method for producing 3,5,6-trichloro-1H-pyridine-2-on Oct. 8, 1985
4546191 Trifluoromethyl-2-pyridinone or pyridinthione compounds and process for the preparation of the same Oct. 8, 1985
4517368 2,3-Dichloro-5-iodopyridine and methods of making and using the same May. 14, 1985
4503061 Substituted phenyl-pyridinones as cardiotonic agents Mar. 5, 1985
4452629 Herbicidal N,N'-thio-5(substituted-phenoxy or -pyridyloxy)-2-substituted benzoic acid sulfonamides and sulfamidoyl fluoride Jun. 5, 1984
4427672 Combating fungi with substituted triazolylalkyl pyridyl ethers Jan. 24, 1984
4419514 Method for converting carboxylic acid groups to trichloromethyl groups Dec. 6, 1983
4412856 Herbicidal heterocyclic and substituted phenyl phenylacetylene amines Nov. 1, 1983
4393213 Process for producing 6-phenoxypicolinic aldehydes Jul. 12, 1983
4370477 Certain 2-(arylaliphatic thio)-pyridinium compounds Jan. 25, 1983
4369322 Process for the production of substituted acetonitriles Jan. 18, 1983
4342770 Optically active isomers of substituted pyridine methyl esters of cyclopropane carboxylic acid and their use as insecticides Aug. 3, 1982
4327216 Process for producing 2,3,5,6-tetrachloropyridine and 3,5,6-trichloropyridin-2-ol Apr. 27, 1982
4304781 Treatment of ulcers and hypertension Dec. 8, 1981
4271304 Pyridine derivatives Jun. 2, 1981
4262001 Substituted pyridine methyl esters of 2-isopropyl-2-(4-chlorophenyl)acetic acid and their use as insecticides Apr. 14, 1981
4260766 Preparation of (dichloromethyl) pyridines by reductive dechlorination Apr. 7, 1981
4256893 Substituted phenoxy and phenylthio pyridine methanols and substituted methanols Mar. 17, 1981
4254262 Process for producing phenoxycarboxylic acid derivative Mar. 3, 1981
4251663 Thiosubstituted pyridines Feb. 17, 1981
4249009 Processes for preparing 2-chloro-5-trifluoromethylpyridine Feb. 3, 1981
4236009 Method of preparing 4A-arylhexahydro-1H-2-pyrindines and 4A-aryloctahydroisoquinolines Nov. 25, 1980
4234590 Thiosubstituted pyridines Nov. 18, 1980
4230864 Process for making 5-trifluoromethyl pyridone Oct. 28, 1980
4228085 Phenyl-alpha,beta-epoxy-beta-(3-trifluoromethylphenyl)ethyl ketone and process for its production Oct. 14, 1980
4218238 Herbicidal 1-alkyl-3-phenylpyridinium salts Aug. 19, 1980
4218237 Pyridine-2-thio, -2-sulfinyl, and -2-sulfonyl sulfonanilide compounds useful as a herbicidal component Aug. 19, 1980
4191831 Imidazolylethoxy derivatives of pyridin-5-methanols Mar. 4, 1980
4190662 Halomethyl substituted dialkoxypyridines Feb. 26, 1980
4185106 Pyridones as antidandruff agents Jan. 22, 1980
4174209 Herbicidal 1-alkyl-3-phenylpyridinium salts Nov. 13, 1979
4170704 Iodopropargyl pyridyl and picolinyl ethers and thioethers as paint fungicides Oct. 9, 1979
4154834 Substituted isocytosines having histamine H.sub.2 -antagonist activity May. 15, 1979
4153235 Substituted cycloalkyl lactamimides May. 8, 1979
4152136 3-Phenyl-5-substituted-4(1H)-pyridones(thiones) May. 1, 1979
4144239 Manufacture of pyridoxin Mar. 13, 1979
4138488 Diphenylmethyl picolinic acid derivatives and their use as anti-acne agents Feb. 6, 1979
4128552 1-[4,4-Bis(4-fluorophenyl)butyl]-4-phenylthio-1,2,3,6 -tetrahydropyridines and related sulfoxides and sulfones Dec. 5, 1978
4127582 Method of preparing alkyl halopyridinyloxyalkanoates Nov. 28, 1978
4120692 Thio pyridine N-oxides and regulation of the natural growth and development of plants therewith Oct. 17, 1978
4102669 Herbicidal beta-phenyl-4-piperidinones and -dihydropyridinones Jul. 25, 1978
4096180 Fluorodehydroxylation of serine Jun. 20, 1978
4080329 Process for the manufacture of 2-mercapto pyridine-1-oxides Mar. 21, 1978

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