US PATENT SUBCLASS 558 / 459
.~.~.~.~ Hydrogenation of dinitriles, or displacement of halo, hydroxy, or alkoxy by ammonia or substituted ammonia

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}
435  DF  .~.~ Acyclic (e.g., purification of saturated nitriles, etc.) {9}
452  DF  .~.~.~ Nitrogen attached indirectly to the cyano group by nonionic bonding {4}
459.~.~.~.~ Hydrogenation of dinitriles, or displacement of halo, hydroxy, or alkoxy by ammonia or substituted ammonia

DEFINITION

Classification: 558/459

Processes under sublcass 452 wherein halo, hydroxy or alkoxy is displace by ammonia or substituted ammonia, or wherein a dinitrile is hydrogenated.

(1) Note. Examples of processes provided for herein are: [figure] [figure] [figure]