US PATENT SUBCLASS 546 / 288
.~.~.~.~ 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}
286  DF  .~.~.~ Cyano bonded directly to the six-membered hetero ring {3}
288.~.~.~.~ Chalcogen bonded directly to ring carbon of the six-membered hetero ring


DEFINITION

Classification: 546/288

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

(under subclass 286) 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:

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