US PATENT SUBCLASS 549 / 523
.~.~.~.~.~.~ Epoxidation at site of ethylenic unsaturation

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}
512  DF  .~.~.~ The hetero ring is three-membered consisting of one oxygen and two carbons {7}
513  DF  .~.~.~.~ Processes {5}
518  DF  .~.~.~.~.~ Oxirane ring formed {3}
523.~.~.~.~.~.~ Epoxidation at site of ethylenic unsaturation {2}
524  DF  .~.~.~.~.~.~.~> Liquid phase epoxidation {4}
534  DF  .~.~.~.~.~.~.~> Silver containing catalyst utilized {4}

DEFINITION

Classification: 549/523

(under subclass 518) Processes for reacting an ethylenically unsaturated compound with an oxidizing agent so that oxygen supplied by the oxidizing agent forms an oxirane ring at the site of ethylenic unsaturation.