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Class Information
Number: 544/320
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 having two or more ring hetero atoms of which at least one is nitrogen (e.g., selenazines, etc.) > The six-membered hetero ring consists of two nitrogens and four carbons (e.g., 1,2-diazines, etc.) > 1,3-diazines > Chalcogen bonded directly to diazine ring carbon > At 4- or 6-position > Nitrogen attached directly at 2-position by nonionic bonding
Description: Compounds wherein nitrogen is attached directly to the 2-position of the six-membered hetero ring by nonionic bonding.










Sub-classes under this class:

Class Number Class Name Patents
544/321 Carbocyclic ring containing 775


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13

Patent Number Title Of Patent Date Issued
5585328 Herbicidal pyrrolesulfonylureas Dec. 17, 1996
5569761 Process for the preparation of sulfonylureas Oct. 29, 1996
5565459 Substituted aza(cyclo)alkanes Oct. 15, 1996
5532203 Selective safened herbicidal composition Jul. 2, 1996
5527763 Pyrimidine or triazine derivatives and herbicides Jun. 18, 1996
5525604 4-aminopyrimidine derivatives Jun. 11, 1996
5525724 Process for the preparation of chloropyrimidines Jun. 11, 1996
5525730 Processes for preparation of sulfonylurea derivatives Jun. 11, 1996
5518994 2-arylaminopyrimidinone derivative, and herbicide and plant growth regulator May. 21, 1996
5500406 Iminosulfonylurea dirivatives and herbicides Mar. 19, 1996
5494886 Pyridyl sulphonyl ureas as herbicides and plant growth regulators Feb. 27, 1996
5480993 Process for preparation of sulfonylurea derivatives and intermediates for the process and process for preparing the same Jan. 2, 1996
5475105 N-substituted azabicycloheptane derivatives Dec. 12, 1995
5470819 Fungicides Nov. 28, 1995
5461026 Pyridine sulfonyl urea derivatives Oct. 24, 1995
5457084 Substituted pyridinesulfonamide compound or its salt, process for preparing the same, and herbicide containing the same Oct. 10, 1995
5453427 Pyrimidinyl acrylic acid derivatives Sep. 26, 1995
5439874 Herbicidal substituted bicyclo[3.1.0]hexanes Aug. 8, 1995
5439908 Diazinyl butyric acid amides and esters Aug. 8, 1995
5434157 6-aryl pyrimidine compounds and method for treating viral infections and inducing interferon production Jul. 18, 1995
5426110 Pyrimidinyl-glutamic acid derivatives Jun. 20, 1995
5414084 Process for the preparation of sulfonylureas May. 9, 1995
5403814 Sulfonylureas Apr. 4, 1995
5401844 Regulation of enzymes which utilize tetrahydrobiopterin or tetrahydrofolate cofactors with 6,6-disubstituted-tetrahydropteridines Mar. 28, 1995
5401710 Herbicides Mar. 28, 1995
5397781 Pyrimidine derivatives Mar. 14, 1995
5393733 Herbicidal pyridinesulfonylureas Feb. 28, 1995
5393734 Herbicidal pyridine sulfonamide Feb. 28, 1995
5391537 Picolinic acid derivative, and herbicidal composition Feb. 21, 1995
5385880 Pyridine derivative herbicidal composition containing the same, and method for killing weeds Jan. 31, 1995
5374725 Process for the preparation of sulfonylureas Dec. 20, 1994
5373012 5-fluoro-2,4,6-pyrimidinetriamine compounds Dec. 13, 1994
5369083 Sulfonylureas Nov. 29, 1994
5364937 Processes for preparing sulfonylureas Nov. 15, 1994
5360804 Multicomponent agent or kit for preparing the sulpho-conjugated form of pyridino, pyrimidino or triazino N-oxide compounds and method of use Nov. 1, 1994
5356862 Herbicidal sulfonylureas Oct. 18, 1994
5342823 Sulfonylureas Aug. 30, 1994
5324710 Sulfonated heterocyclic carboxamides and their use as herbicides, and growth regulators Jun. 28, 1994
5312919 Photooxidation products and derivatives thereof of merocyanine-540, their preparation and uses May. 17, 1994
5298481 6-arylpyrimidines and herbicidal use Mar. 29, 1994
5296453 Process for the interconversion of two seperate crystal forms of a herbicidal pyridine sulfonamide Mar. 22, 1994
5294710 N-5-protected 2,5-diamino-4,6-dichloropyrimidines and process for their production Mar. 15, 1994
5292744 1-[pyri(mi)dyl-(2)]-5-hydroxy-pyrazole microbicides Mar. 8, 1994
5292740 Sulfonamides Mar. 8, 1994
5284854 2-aminopyrimidinone derivatives Feb. 8, 1994
5284945 Process for the preparation of 2-pyridylsulfonylureas Feb. 8, 1994
5283332 2-amino(fluoroalkoxy)pyrimidines and the preparation thereof Feb. 1, 1994
5280009 Substituted pyrimidine derivatives and their use for controlling undesirable plant growth Jan. 18, 1994
5266697 Process for the production of 2-substituted 4,6-dialkoxypyrimidines Nov. 30, 1993
5264440 Fungicides Nov. 23, 1993

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