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Class Information
Number: 544/296
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 > Plural diazine rings > Plural 1,3-diazine rings
Description: Compounds which contain at least two of the six-membered hetero rings, each having its nitrogens in the 1- and 3- positions, and carbons in the remaining four positions.










Patents under this class:
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Patent Number Title Of Patent Date Issued
4124760 Photopolymerizable diepoxides containing a nitrogen heterocycle Nov. 7, 1978
4122263 Production of 2-(o-alkylthiophenyl)-1,3-diazocycloalkene hydrohalides Oct. 24, 1978
4118461 1-Substituted aralkyl imidazoles Oct. 3, 1978
4113725 Multifunctional additives Sep. 12, 1978
4089860 Preparation of hydantoins by reacting esters of ethylene-1,2-dicarboxylic acids and ureas and thioureas May. 16, 1978
4086357 Amide derivatives Apr. 25, 1978
4074055 Process for preparing unsaturated imidazolines Feb. 14, 1978
4059583 Substituted indoles Nov. 22, 1977
4058528 5-Hydroxyhexahydropyrimidine Nov. 15, 1977
4048169 1,3-Bis-(.beta.-ethylhexyl)-5-nitro-5-methyl-hexahydropyrimidine-na phthalene-1,5-disulphonate Sep. 13, 1977
4039542 Unsaturated pyrimidine Aug. 2, 1977
4038277 Mono- and dialcohols of five or six membered N-heterocyclic compounds, containing two NH groups per molecule Jul. 26, 1977
4035380 Certain benzazol-2-ylthio compounds Jul. 12, 1977
4033962 2,4-Diamino-pyrimidine derivatives and processes Jul. 5, 1977
4024146 Diacrylic acid ester derivatives of uracil compounds May. 17, 1977
4011218 1,2,4-Triazoles Mar. 8, 1977
3988323 Metal complexes of bishydrazides Oct. 26, 1976
3980781 Fungicidal composition and method containing 2-amino-pyrimidines Sep. 14, 1976
3957784 Bis(4-[4'-hydroxy-5'-carboxy-2'-pyrimidinyl]phenoxy)alkanes May. 18, 1976
3956325 5-Heterocyclic-1,2,3,6-tetrahydro-4(5H) pyrimidinone May. 11, 1976
3956309 Polyglycidyl compounds containing N-heterocyclic structure May. 11, 1976
3948901 Bis (2,4-dioxotetrahydropyrimidinyl-5-sulphonoamido) diphenylsulphoner Apr. 6, 1976
3941789 N-Aryl-N'-(phenyl-or phenoxy-alkyl)-piperazines and salts thereof Mar. 2, 1976
3932418 Electrophotographic material Jan. 13, 1976
3932431 Certain 2-[.alpha.(2-pyridyl)-benzyl] imidazolines and derivatives thereof Jan. 13, 1976
3931041 Liquid crystal compositions Jan. 6, 1976

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