US PATENT SUBCLASS 546 / 7
.~.~.~.~.~ The chalcogen is bonded directly to ring carbon of a quinoline ring system (including hydrogenated)

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546 /   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) {1}
1  DF  .~.~ Hetero ring is six-membered consisting of one nitrogen and five carbons {24}
2  DF  .~.~.~ Heavy metal or aluminum containing {8}
6  DF  .~.~.~.~ The metal is bonded directly to chalcogen which chalcogen is attached directly or indirectly to the six-membered hetero ring by nonionic bonding {1}
7.~.~.~.~.~ The chalcogen is bonded directly to ring carbon of a quinoline ring system (including hydrogenated)

DEFINITION

Classification: 546/7

The chalcogen is bonded directly to ring carbon of a quinoline ring system (including hydrogenated):

(under subclass 6) Compounds wherein the chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) is attached directly to a ring carbon of a quinoline ring system; said ring system, having the following basic structure, may contain double bonds between ring members: [figure]

(1) Note. An example of a compound provided for herein is: [figure]