US PATENT SUBCLASS 548 / 262.2
.~.~.~ 1,2,4-triazoles (including hydrogenated)

Current as of: June, 1999
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548 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {1}
*  DD  .~ 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) {4}
100  DF  .~.~ Hetero ring is five-membered having two or more ring hetero atoms of which at least one is nitrogen (e.g., selenazoles, etc.) {18}
262.2.~.~.~ 1,2,4-triazoles (including hydrogenated) {13}
262.4  DF  .~.~.~.~> Polycyclo ring system having the triazole ring as one of the cyclos
262.6  DF  .~.~.~.~> Having -NH-C(=X)-NHH attached directly to the triazole ring by nonionic bonding (wherein X is chalcogen or =NH, and substitution may be made for hydrogen only)
262.8  DF  .~.~.~.~> Plural nitrogens attached to the triazole ring indirectly by acyclic nonionic bonding, two of which are bonded directly to the same acyclic carbon
263.2  DF  .~.~.~.~> Chalcogen bonded directly to ring carbon of the triazole ring {4}
264.8  DF  .~.~.~.~> Nitrogen attached directly to the triazole ring by nonionic bonding {3}
265.8  DF  .~.~.~.~> Benzene ring bonded directly to ring nitrogen of the triazole ring, and directly to the acyclic carbon of a benzoyl or benzyl group
266.2  DF  .~.~.~.~> Additional unsaturated hetero ring attached directly or indirectly to the triazole ring by nonionic bonding {2}
266.8  DF  .~.~.~.~> Cyano or -C(=X)-, wherein X is chalcogen, bonded directly to the triazole ring
267.2  DF  .~.~.~.~> Nitrogen attached indirectly to the triazole ring by acyclic nonionic bonding {2}
267.8  DF  .~.~.~.~> Chalcogen attached indirectly to the triaole ring by acyclic nonionic bonding {3}
268.8  DF  .~.~.~.~> The triazole ring and a hetero ring whose ring members are carbon and chalcogen are bonded directly to the same acyclic carbon
269.2  DF  .~.~.~.~> Processes for forming the triazole ring
269.4  DF  .~.~.~.~> Benzene ring bonded directly to the triazole ring

DEFINITION

Classification: 548/262.2

(under subclass 100) Compounds in which the five-membered hetero ring has nitrogens in the 1-, 2-, and 4- positions and carbons in the remaining two positions.

(1) Note. This subclass provides for compounds containing the following ring which may have double bonds between its members: [figure]