US PATENT SUBCLASS 549 / 312
.~.~.~.~.~.~.~.~ Acyclic carbon chain containing carbon to carbon unsaturation attached directly or indirectly to the lactone ring by nonionic bonding

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}
263  DF  .~.~.~ Lactones (i.e., -C(=X)O-, wherein X is chalcogen, is part of the hetero ring) {6}
295  DF  .~.~.~.~ The lactone ring is five-membered {10}
297  DF  .~.~.~.~.~ Polycyclo ring system having the lactone ring as one of the cyclos {3}
302  DF  .~.~.~.~.~.~ Bicyclo ring system having the lactone ring as one of the cyclos {6}
311  DF  .~.~.~.~.~.~.~ The bicyclo ring system consists of two five-membered rings {1}
312.~.~.~.~.~.~.~.~ Acyclic carbon chain containing carbon to carbon unsaturation attached directly or indirectly to the lactone ring by nonionic bonding

DEFINITION

Classification: 549/312

(under subclass 311) Compounds wherein an acyclic carbon chain containing carbon to carbon unsaturation is attached directly or indirectly to the lactone ring by nonionic bonding.

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