US PATENT SUBCLASS 549 / 521
.~.~.~.~.~.~.~ Oxirane ring and chalcogen, cyano, nitrogen, or halogen are bonded directly to the same carbon (e.g., glycidyl ester formed, etc.)

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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}
520  DF  .~.~.~.~.~.~ By dehydrohalogenation of a halohydrin or by reacting a hypohalite or hypohalous acid with an ethylenically unsaturated compound at the site of unsaturation {2}
521.~.~.~.~.~.~.~ Oxirane ring and chalcogen, cyano, nitrogen, or halogen are bonded directly to the same carbon (e.g., glycidyl ester formed, etc.)

DEFINITION

Classification: 549/521

(under subclass 520) Processes of forming a glycidyl containing compound wherein bonded directly to the acyclic carbon of the glycidyl moiety is chalcogen (e.g., oxygen, sulfur, selenium, or tellurium), cyano (i.e., -C=N), nitrogen, or halogen.

(1) Note. This subclass includes the formation of glycidyl ethers, esters, amides, etc. The compounds formed have the following basic structure, where X=chalcogen, -CN, -N, halogen. [figure]