(0)C07D:23/33:

(0)C07D:23/33:

IPC6

SECTION C - CHEMISTRY; METALLURGY

HETEROCYCLIC COMPOUNDS

C07D

24/34

C07D335/00 - C07D401/14

335

/

00

Heterocyclic compounds containing six-membered rings having one sulfur atom as the only ring hetero atom [2]

not condensed with other rings [2]

condensed with carbocyclic rings or ring systems [2]

Benzothiopyrans; Hydrogenated benzothiopyrans [2]

Naphthothiopyrans; Hydrogenated naphthothiopyrans [2]

Dibenzothiopyrans; Hydrogenated dibenzothiopyrans [2]

Thioxanthenes [2]

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 in position 9 [2]

Oxygen atoms, e.g. thioxanthones [2]

Nitrogen atoms [2]

with hydrocarbon radicals, substituted by amino radicals, directly attached in position 9 [2]

337

Heterocyclic compounds containing rings of more than six members having one sulfur atom as the only ring hetero atom [2]

Seven-membered rings [2]

not condensed with other rings [2]

condensed with carbocyclic rings or ring systems [2]

condensed with one six-membered ring [2]

condensed with two six-membered rings [2]

[b, e]-condensed [2]

[b, f]-condensed [2]

Eight-membered rings [2]

339

Heterocyclic compounds containing rings having two sulfur atoms as the only ring hetero atoms [2]

Five-membered rings [2]

having the hetero atoms in positions 1 and 2, e.g. lipoic acid [2]

having the hetero atoms in positions 1 and 3, e.g. cyclic dithiocarbonates [2]

Six-membered rings [2]

341

Heterocyclic compounds containing rings having three or more sulfur atoms as the only ring hetero atoms [2]

343

Heterocyclic compounds containing rings having sulfur and selenium or sulfur and tellurium atoms as the only ring hetero atoms [2]

345

Heterocyclic compounds containing rings having selenium or tellurium atoms as the only ring hetero atoms [2]

347

Heterocyclic compounds containing rings having halogen atoms as ring hetero atoms [2]

Heterocyclic compounds containing two or more hetero rings [2]

Note

Groups C 07 D 401/00 to C 07 D 421/00 cover compounds containing two or more relevant hetero rings at least two of which are covered by different main groups of groups C 07 D 203/00 to C 07 D 347/00, neither condensed among themselves nor condensed with a common carbocyclic ring or ring system. [2]

401

Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom [2]

containing two hetero rings [2]

directly linked by a ring-member-to-ring- member bond [2]

linked by a carbon chain containing only aliphatic carbon atoms [2]

linked by a carbon chain containing alicyclic rings [2]

linked by a carbon chain containing aromatic rings [2]

linked by a chain containing hetero atoms as chain links [2]

containing three or more hetero rings [2]

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