US PATENT SUBCLASS 558 / 401
.~.~.~ Benzene ring and cyano connected by a chain consisting of two carbons multiple bonded to each other

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}
388  DF  .~.~ Benzene ring attached indirectly to the cyano group by acyclic nonionic bonding {5}
401.~.~.~ Benzene ring and cyano connected by a chain consisting of two carbons multiple bonded to each other {2}
402  DF  .~.~.~.~> Additional benzene ring bonded directly to the chain
403  DF  .~.~.~.~> Nitrogen, except as nitro or nitroso, bonded directly to the benzene ring

DEFINITION

Classification: 558/401

(under subclass 388) Compounds wherein a chain consisting of two carbons multiple bonded to each other connects the cyano group and the benzene ring.

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