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Class Information
Number: 548/136
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 five-membered having two or more ring hetero atoms of which at least one is nitrogen (e.g., selenazoles, etc.) > The five-membered hetero ring consists of chalcogen, plural nitrogens, and carbon > 1,3,4-thiadiazoles (including hydrogenated)
Description: Compounds in which the five-membered hetero ring has sulfur in the 1-position, nitrogens in the 3- and 4-positions, and carbons in the remaining two positions.










Sub-classes under this class:

Class Number Class Name Patents
548/142 Chalcogen bonded directly to the 2- and 5- positions of the thiadiazole ring 167
548/137 Diazole ring attached directly to the thiadiazole ring by nonionic bonding 65
548/138 Nitrogen attached directly to the thiadiazole ring by nonionic bonding 197


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12

Patent Number Title Of Patent Date Issued
5205853 Herbicidal sulphonylated carboxamides Apr. 27, 1993
5202345 Carbamoylpyrrolidone derivatives and drugs for senile dementia Apr. 13, 1993
5200109 Mesomorphic compound, liquid crystal composition containing same and liquid crystal device using same Apr. 6, 1993
5194167 Quaternary ammonium salts of mercaptothiadiazoles and related heterocyclic derivatives as antioxidant and antiwear additives Mar. 16, 1993
5190963 Cyclopropane(thio)carboxamides, the preparation thereof and intermediates therefor, and the use thereof for controlling pests Mar. 2, 1993
5169427 Herbicidal cycloalkyl-substituted thiadiazolyloxyacetamides Dec. 8, 1992
5166216 Methyl .alpha.-arylacrylates substituted by a heterocyclic radical and their use Nov. 24, 1992
5162349 Nematocidal and fungicidal compositions Nov. 10, 1992
5162539 Preparation of 2-alkylthio-1,3,4-thiadiazoles Nov. 10, 1992
5158943 Sulfur-containing heterocyclic compounds Oct. 27, 1992
5155122 3,5-di-tertiary-butyl-4-hydroxyphenyl-1,3,4-thiadiazoles, and oxadiazoles and 3,5-di-tertiary-butyl-4-hydroxy-phenyl-1,2,4-thiadazoles, oxadiazoles and triazoles as antiinflammatory agents Oct. 13, 1992
5147443 Microbicidal agents Sep. 15, 1992
5143642 Liquid-crystalline medium for electrooptical display elements based on the ECB effect Sep. 1, 1992
5138064 3-Pyrrolidinylthio-1-azabicyclo-[3.2.0]hept-2-ene-2-carboxylic acid compounds Aug. 11, 1992
5135938 Leukotriene antagonists Aug. 4, 1992
5132316 Heterocyclic azabicyclic compounds for enhancing acetylcholine function Jul. 21, 1992
5120733 Carbamoylpyrrolidone derivatives and drugs for senile dementia Jun. 9, 1992
5103007 Lipids Apr. 7, 1992
5102897 3,5-ditertiarybutyl-4-hydroxyphenyl, 1,3,4-thiadiazoles and oxadiazoles linked by carbon, oxygen, and sulfur residues Apr. 7, 1992
5101034 Preparation of heteroaryloxyacetamides Mar. 31, 1992
5098600 Liquid crystal compound, liquid crystal composite including the compound and liquid crystal device utilizing the composite Mar. 24, 1992
5096483 5-chloro-1,2,4-thiadiazol-2-yloxy-acetamide herbicides Mar. 17, 1992
5097038 Herbicidal substituted thiadiazolyloxyacetamaides Mar. 17, 1992
5091109 Mesomorphic compound, liquid crystal composition containing same and liquid crystal device using same Feb. 25, 1992
5091397 1-aza-bicyclico(2.2.1)heptanes Feb. 25, 1992
5086186 N-trichloroacetyl-2-oxindole-1-carboxamides Feb. 4, 1992
5081245 Carboxylic acid derivatives Jan. 14, 1992
5076961 Mesomorphic compound, liquid crystal composition containing same and liquid crystal device using same Dec. 31, 1991
5073563 Alkoxycoumarins substituted by a heterocyclic radical, their preparation and therapeutic agents containing these compounds Dec. 17, 1991
5064962 Diaminothiophenes Nov. 12, 1991
5061804 3-pyrrolidinylthio-1-azabicyclo-(3.2.0)hept-2-ene-2-carboxylic acid derivatives and processes for the preparation thereof Oct. 29, 1991
5061311 Substituted triazolinone herbicides and plant growth regulators Oct. 29, 1991
5051515 Novel generation of heteroaryl thio, sulfoxy, or sulfonyl alkyl azoles Sep. 24, 1991
5047554 3-substituted-2-oxindole derivatives Sep. 10, 1991
5034151 Mesomorphic compound, ferroelectric liquid crystal composition containing same and ferroelectric liquid crystal device Jul. 23, 1991
5034047 Cyclohexenone derivatives and their use as herbicides Jul. 23, 1991
5013854 Process for preparing acid halides May. 7, 1991
5013745 Nematicidal compositions May. 7, 1991
5001138 Novel heterocyclic compounds Mar. 19, 1991
4988718 Pesticidal substituted 4-heterocyclyloximino-pyrazolin-5-ones, compositions and use Jan. 29, 1991
4988380 Use of difluoromethyl-thiadiazolyl-oxyacetamides as selective herbicides Jan. 29, 1991
4988378 Herbicidal substituted thiodiazolyloxyacetamides Jan. 29, 1991
4977167 Carbamoylpyrolidone derivatives and drugs for senile dementia Dec. 11, 1990
4968691 Heterocyclo-substituted azabicyclo muscannic agonists Nov. 6, 1990
4968342 Herbicidal N-isopropylheteroaryloxyacetanilides Nov. 6, 1990
4959379 Pesticidal 7-substituted 2-carboxamido-benzothiazole 3-oxides Sep. 25, 1990
4958043 Novel methine compounds, polymers containing them and formed articles therefrom Sep. 18, 1990
4952599 Phenylthioureas, phenylisothioureas, phenylcarbodiimides, pesticidal compositions containing them and their use in pest control Aug. 28, 1990
4952703 Intermediates for making 2-oxindole-1-carboxamides Aug. 28, 1990
4952699 Liquid-crystalline, 2,5-disubstituted, 1,3,4-thiadiazoles with extended smectic C phases Aug. 28, 1990

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