IPC 7 English version C07D 213/00-C07D 213/90

IPC ⁷ English version

C07D 209/00 - C07D 211/98

C07D21300-C07D21390

C07D 215/00 - C07D 223/32

SECTION C – CHEMISTRY; METALLURGY

C 07

ORGANIC CHEMISTRY (such compounds as the oxides, sulfides, or oxysulfides of carbon, cyanogen, phosgene, hydrocyanic acid or salts thereof C01; products obtained from layered base-exchange silicates by ion-exchange with organic compounds such as ammonium, phosphonium or sulfonium compounds or by intercalation of organic compounds C01B 33/44; macromolecular compounds C08; dyes C09; fermentation products C12; fermentation or enzyme-using processes to synthesise a desired chemical compound or composition or to separate optical isomers from a racemic mixture C12P; production of organic compounds by electrolysis or electrophoresis C25B 3/00, C25B 7/00) [2]

C 07 D

HETEROCYCLIC COMPOUNDS [2]

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Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members [2]

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having three double bonds between ring members or between ring members and non-ring members [2]

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having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom [2]

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containing only hydrogen and carbon atoms in addition to the ring nitrogen atom [2]

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Preparation by ring-closure [2]

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involving the use of ammonia, amines, amine salts, or nitriles [3]

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from acetaldehyde or cyclic polymers thereof [3]

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from unsaturated compounds [3]

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127

Preparation from compounds containing pyridine rings [3]

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133

Preparation by dehydrogenation of hydrogenated pyridine compounds [3]

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Preparation from compounds containing heterocyclic oxygen [2]

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containing only one pyridine ring [2]

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Salts thereof [2]

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Quaternary compounds thereof [2]

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containing two or more pyridine rings directly linked together, e.g. bipyridyl [2]

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with substituted hydrocarbon radicals attached to ring carbon atoms [2]

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Radicals substituted by halogen atoms or nitro radicals [2]

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Radicals substituted by singly-bound oxygen or sulfur atoms (bound to the same carbon atom C07D 213/44) [2]

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Oxygen atoms [2]

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Sulfur atoms [2]

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to which a second hetero atom is attached [2]

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Radicals substituted by singly-bound nitrogen atoms (nitro radicals C07D 213/26) [2]

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having only hydrogen or hydrocarbon radicals attached to the substituent nitrogen atom [2]

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Acylated substituent nitrogen atom [2]

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having hetero atoms attached to the substituent nitrogen atom (nitro radicals C07D 213/26) [2]

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Radicals substituted by doubly-bound oxygen, sulfur, or nitrogen atoms, or by two such atoms singly-bound to the same carbon atom [2]

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Oxygen atoms [2]

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Aldehydo radicals [2]

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Ketonic radicals [2]

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Acetal radicals [2]

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Sulfur atoms [2]

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Nitrogen atoms [2]

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Radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals [2]

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Acids; Esters [2]

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Amides [2]

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Nitriles [2]

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Amidines [2]

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with at least one of the bonds being to sulfur [2]

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with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms [2]

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Halogen atoms or nitro radicals [2]

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Oxygen or sulfur atoms [2]

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One oxygen atom [2]

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attached in position 2 or 6 [2]

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2-Phenoxypyridines; Derivatives thereof [5]

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and having in the molecule an acyl radical containing a saturated three-membered ring, e.g. chrysanthemumic acid esters [5]

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attached in position 3 or 5 [2]

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having in position 3 an oxygen atom and in each of the positions 4 and 5 a carbon atom bound to an oxygen, sulfur, or nitrogen atom, e.g. pyridoxal [2]

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2-Methyl-3-hydroxy-4,5-bis (hydroxy-methyl) pyridine, i.e. pyridoxine [2]

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attached in position 4 [2]

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Two or more oxygen atoms [2]

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Sulfur atoms [4]

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to which a second hetero atom is attached [4]

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Nitrogen atoms (nitro radicals C07D 213/61) [2]

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Unsubstituted amino or imino radicals [2]

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Amino or imino radicals substituted by hydrocarbon or substituted hydrocarbon radicals [2]

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Amino or imino radicals, acylated by carboxylic or carbonic acids, or by sulfur or nitrogen analogues thereof, e.g. carbamates [2]

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to which a second hetero atom is attached (nitro radicals C07D 213/61) [2]

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Hydrazine radicals [2]

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Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen, e.g. ester or nitrile radicals [2]

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Acids; Esters [2]

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in position 3 [2]

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803

Processes of preparation [3]

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by oxidation of pyridines or condensed pyridines [3]

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Amides; Imides [2]

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in position 3 [2]

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Thioacids; Thioesters; Thioamides; Thioimides [2]

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Nitriles [2]

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in position 3 [2]

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Hydrazides; Thio or imino analogues thereof [2]

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in position 3 [2]

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Nicotinoylhydrazones [2]

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with hetero atoms directly attached to the ring nitrogen atom [2]

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having more than three double bonds between ring members or between ring members and non-ring members [2]

C07D 209/00 - C07D 211/98

C07D 215/00 - C07D 223/32