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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
4691023 Amino disulfides Sep. 1, 1987
4681949 Bis-aminopyridinium salts as phase transfer catalysts for aromatic ether imide preparation Jul. 21, 1987
4678789 Triazole antifungal agents Jul. 7, 1987
4666502 Herbicidal N-thienyl-chloroacetamides May. 19, 1987
4659657 Chromogenic and fluorogenic esters for photometric or fluorimetric determination of phosphatases or sulphatases Apr. 21, 1987
4656176 2-thiazolyl, oxazolyl, triazolyl and thiadiazolyl alkylamino-3-nitro-heterocyclic compounds Apr. 7, 1987
4652651 Process for the manufacture of 1-sulpho-2-oxoazetidine carboxylic acid intermediates via catalytic ester cleavage Mar. 24, 1987
4648897 Herbicidal N-oxadiazolylmethyl-, N-thiadiazolylmethyl-, and N-triazolylmethyl-substituted alpha-haloacetanilide Mar. 10, 1987
4645525 Azolyoxy-carboxylic acid amide compounds and herbicidal compositions Feb. 24, 1987
4636245 Herbicidal tetrahydrothiopyran-2,4-dione derivatives, compositions, and method of use therefor Jan. 13, 1987
4634779 Cyanogenation of benzopyrones and naphthopyrones Jan. 6, 1987
4629495 Herbicidal 5-amino-4-cyano-1-phenylpyrazoles Dec. 16, 1986
4624696 Cyclohexenone derivatives and their use for controlling undesirable plant growth Nov. 25, 1986
4616081 Cephalosporin compounds Oct. 7, 1986
4609738 Novel dyes, their production and their use Sep. 2, 1986
4606755 Herbicidal sulfonamides Aug. 19, 1986
4604132 Herbicidal 5-(hetero-substituted) cyclohexane-1,3-dione derivatives Aug. 5, 1986
4598147 Cephem compounds and processes for preparation thereof Jul. 1, 1986
4596666 Aryl-mercapto anthraquinone dyestuffs, their preparation and use and dichroic material containing aryl-mercapto anthraquinone dyestuffs Jun. 24, 1986
4594427 Preparation of novel 5-acyloxy-4-(5H)-oxazolonium salts suited for use as intermediates for triazinone herbicides Jun. 10, 1986
4594094 Oxacycloalkane-alpha-(thio)carboxylic acid derivatives and use as plant growth regulators and herbicides Jun. 10, 1986
4590192 Benzisothiazoles, their pharmaceutical compositions, and method of use May. 20, 1986
4585873 Novel hypotensive imidazothiadiazolealkenecarboxamides Apr. 29, 1986
4578388 Unsymmetrical guanidino, thioureido, isothioureido and nitromethyleneamino derivatives Mar. 25, 1986
4569942 N,3-Disubstituted 2-oxindole-1-carboxamides as analgesic and antiinflammatory agents Feb. 11, 1986
4568684 N-Substituted 2-methylnaphthylamides, their preparation, and fungicides containing these compounds Feb. 4, 1986
4562260 Preparation of 1,3,4-thiadiazole-5-sulfonamides Dec. 31, 1985
4556672 3-Substituted 2-oxindole-1-carboxamides as analgesic and anti-inflammatory agents Dec. 3, 1985
4550171 2-(Oxo, or thio)-3-substituted 1,3-benzothiazolyl-4-cyano-7-substituted amino-benzopyrans Oct. 29, 1985
4547579 Substituted benzopyran compounds Oct. 15, 1985
4544751 Thiadiazole derivatives Oct. 1, 1985
4544496 Light-collecting system using coumarin derivatives as energy converters Oct. 1, 1985
4537962 Substituted 1,3,4-thiadiazolo[3,2-A]pyrimidines and compositions containing them Aug. 27, 1985
4528379 Preparation of substituted thiadiazolyloxyacetamides Jul. 9, 1985
4504304 6-Oxabicyclo(3.2.2.)nonan-4-ol ether herbicides Mar. 12, 1985
4501894 Heterocyclic alcohols and their derivatives Feb. 26, 1985
4500340 Urea derivatives and their use for controlling undesirable plant growth Feb. 19, 1985
4496720 Preparation of thioethers Jan. 29, 1985
4489093 Insecticidal esters Dec. 18, 1984
4483986 4-Nitrobenzophenone compounds Nov. 20, 1984
4469785 Light-sensitive silver halide color photographic material Sep. 4, 1984
4465504 Herbicidally active novel N-(2,2,2-trifluoroethyl)-N-alkyl-azolyloxyacetic acid amides and intermediates therefor Aug. 14, 1984
4463076 Merocyanine-cyanine-merocyanine (MCM) electrically photosensitive colorants for photoelectrophoretic imaging Jul. 31, 1984
4463179 1H-1,2,3-triazol-5-ylthio ester of N-carbobenzyloxy-p-hydroxyphenylglycine Jul. 31, 1984
4460580 N-Alkylated aminoalcohols and their pharmaceutical compositions useful for the treatment of cardiac insufficiency Jul. 17, 1984
4455428 Preparation of hetaryloxyacetamides Jun. 19, 1984
4451548 Electrophotographic photoreceptor May. 29, 1984
4448968 Process for the preparation of 1,3,4-thiadiazolone derivatives May. 15, 1984
4440775 Azolyl alkylthioureas and guanidines alkylaminonitroethylene compounds Apr. 3, 1984
4438127 Pharmacologically active compounds Mar. 20, 1984

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