US PATENT SUBCLASS 546 / 291
.~.~.~.~ Chalcogen and acyclic nitrogen bonded directly to the same carbon

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}
290  DF  .~.~.~ Chalcogen bonded directly to ring carbon of the six-membered hetero ring {9}
291.~.~.~.~ Chalcogen and acyclic nitrogen bonded directly to the same carbon {1}
292  DF  .~.~.~.~.~> The chalcogen or the acyclic nitrogen is bonded directly to the six membered hetero ring

DEFINITION

Classification: 546/291

Chalcogen and acyclic nitrogen bonded directly to the same carbon:

(under subclass 290) Compounds in which chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) and acyclic nitrogen are bonded directly to the same carbon.

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