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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
4073791 1-Substitutedphenyl-4(1H)-pyridinone hydrazones Feb. 14, 1978
4071521 Process for making 2,6-difluoro pyridine Jan. 31, 1978
4067877 .omega.-Substituted alkanes and 1-hydroxyalkanes Jan. 10, 1978
4065290 Herbicidal .beta.-phenyl-4-piperidinones Dec. 27, 1977
4063926 Herbicidal methods and compositions using 3,5-dichloro-2,6-difluoro-4-hydroxypyridine or salts thereof Dec. 20, 1977
4062849 Perfluoroalkylene quaternary heterocyclic nitrogen salts Dec. 13, 1977
4061757 Compounds having juvenile hormone activity Dec. 6, 1977
4049671 Process for preparing N-cyanoguanidines Sep. 20, 1977
4020169 Process for preparing aryl trifluoromethylsulfides Apr. 26, 1977
4014891 Process for making aryl chloromethyl sulfides Mar. 29, 1977
3995042 Pyridine containing compounds Nov. 30, 1976
3980656 Partially hydrogenated 1H-indeno-[1,2-b]-pyridine derivatives Sep. 14, 1976
3978079 Chemiluminescence Aug. 31, 1976
3972888 Process for the preparation of 1-hydroxy-pyridones Aug. 3, 1976
3969360 Catalyzed alkylation of halopyridinates Jul. 13, 1976
3962260 6-Hydrazino-2,3,5-trihalo-4-alkylthio pyridines and method of preparing same Jun. 8, 1976
3960542 Herbicidal 2-sulfinyl and 2-sulfonyl pyridine N-oxide derivatives Jun. 1, 1976
3956344 Process for the production of substituted 2-benzoylpyridines May. 11, 1976
3944558 Fluorocarbon derivatives of pyridine Mar. 16, 1976
3933819 Fluorinated aromatic and heterocyclic sulfides Jan. 20, 1976
3932422 8-Methylene-3-azabicyclo[3.3.1]non-6-en-4-ones Jan. 13, 1976

1 2 3 4 5

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