US PATENT SUBCLASS 558 / 381
.~.~.~ By dehalogenation, dehydrocyanation, ring cleavage, or depolymerization

Current as of: June, 1999
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558 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {21}
303  DF  .~ Nitriles (i.e., compounds having cyano bonded directly to carbon, which carbon may be single bonded to any atom but may be multiple bonded only to carbon) {21}
379  DF  .~.~ Processes of forming an acyclic or alicyclic carbon to carbon double bond from an existing acyclic or alicyclic carbon to carbon single bond (e.g., by dehydroacylation, etc.) {4}
381.~.~.~ By dehalogenation, dehydrocyanation, ring cleavage, or depolymerization

DEFINITION

Classification: 558/381

(under subclass 379) Processes wherein formation of the carbon to carbon double bond is accomplished by dehalogenation, dehydrocyanation, ring cleavage or depolymerization.

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

(2) Note. An example of a dehydrocyanation process provided for herein is: [figure]

(3) Note. An example of a ring cleavage process provided for herein is: [figure]

(4) Note. An example of a depolymerization process provided for herein is: [figure] [figure] [figure]