US PATENT SUBCLASS 549 / 470
.~.~.~.~.~.~ Chalcogen of -C(=X)X-, wherein the X's are the same or diverse chalcogens, bonded directly to the carbocyclic ring of the bicyclo ring system

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}
429  DF  .~.~.~ The hetero ring is five-membered {14}
456  DF  .~.~.~.~ Polycyclo ring system having the hetero ring as one of the cyclos {3}
462  DF  .~.~.~.~.~ Bicyclo ring system having the hetero ring as one of the cyclos {9}
470.~.~.~.~.~.~ Chalcogen of -C(=X)X-, wherein the X's are the same or diverse chalcogens, bonded directly to the carbocyclic ring of the bicyclo ring system

DEFINITION

Classification: 549/470

(under subclass 462) Compounds wherein the singly bonded chalcogen of a --X- group, in which the X's are the same or diverse chalcogens (i.e., oxygen, sulfur, selenium or tellurium), is bonded directly to the carbocyclic ring of the bicyclo ring system.

(1) Note. An example of a compound provided for herein is: [figure]