US PATENT SUBCLASS 549 / 409
.~.~.~.~.~.~.~.~ Chalcogen double bonded or plural chalcogens bonded directly to the carbocyclic ring (e.g., coenzyme Q, etc.)


Current as of: June, 1999
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549 /   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) {2}
200  DF  .~.~ Oxygen containing hetero ring (e.g., dioxirane, etc.) {16}
356  DF  .~.~.~ The hetero ring is six-membered {9}
381  DF  .~.~.~.~ Polycyclo ring system having the hetero ring as one of the cyclos {4}
396  DF  .~.~.~.~.~ Bicyclo ring system having the hetero ring as one of the cyclos {2}
398  DF  .~.~.~.~.~.~ The bicyclo ring system consists of the hetero ring and a six-membered carbocyclic ring {6}
408  DF  .~.~.~.~.~.~.~ Chalcogen bonded directly to the carbocyclic ring of the bicyclo ring system (e.g., tocopherols, etc.) {5}
409.~.~.~.~.~.~.~.~ Chalcogen double bonded or plural chalcogens bonded directly to the carbocyclic ring (e.g., coenzyme Q, etc.)


DEFINITION

Classification: 549/409

(under subclass 408) Compounds in which chalcogen is double bonded or at least two chalcogens are bonded directly to the carbocyclic ring.

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