US PATENT SUBCLASS 546 / 349
.~.~.~.~ Alkylation or dealkylation process


Current as of: June, 1999
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546 /   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) {1}
1  DF  .~.~ Hetero ring is six-membered consisting of one nitrogen and five carbons {24}
348  DF  .~.~.~ Unsubstituted or hydrocarbyl substituted only, or salt thereof {3}
349.~.~.~.~ Alkylation or dealkylation process


DEFINITION

Classification: 546/349

Alkylation or dealkylation process:

(under subclass 348) Processes in which an alkyl group is formed or removed.