US PATENT SUBCLASS 546 / 309
.~.~.~.~ Acyclic nitrogen bonded directly to a -C(=X)- group, wherein X is chalcogen

Current as of: June, 1999
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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}
304  DF  .~.~.~ Nitrogen attached directly to the six-membered hetero ring by nonionic bonding {7}
309.~.~.~.~ Acyclic nitrogen bonded directly to a -C(=X)- group, wherein X is chalcogen

DEFINITION

Classification: 546/309

Acyclic nitrogen bonded directly to A -C(=X)- group, wherein X Is chalcogen:

(under subclass 304) Compounds in which acyclic nitrogen is bonded directly to a group, wherein X is chalcogen (i.e., oxygen, sulfur, selenium, or tellurium).

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