US PATENT SUBCLASS 546 / 24
.~.~.~.~ Chalcogen bonded directly to ring carbon of the six-membered hetero ring


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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}
22  DF  .~.~.~ Phosphorus attached indirectly to the six-membered hetero ring by nonionic bonding {2}
24.~.~.~.~ Chalcogen bonded directly to ring carbon of the six-membered hetero ring {1}
25  DF  .~.~.~.~.~> The phosphorus is bonded directly to the chalcogen


DEFINITION

Classification: 546/24

Chalcogen bonded directly to ring carbon fo the six-membered hetero ring:

(under subclass 22) Compounds wherein chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) is bonded directly to a ring carbon of the six-membered hetero ring.

(1) Note. Examples of compounds provided for herein are: [figure] [figure] [figure]