US PATENT SUBCLASS 564 / 491
.~.~.~.~.~ Of plural cyanos


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

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {1}
1  DF  .~ AMINO NITROGEN CONTAINING (E.G., UREA, SULFONAMIDES, NITROSAMINES, OXYAMINES, ETC., AND SALTS THEREOF) {37}
463  DF  .~.~ Acyclic {16}
489  DF  .~.~.~ Forming amine group directly by reduction {2}
490  DF  .~.~.~.~ Of cyano {2}
491.~.~.~.~.~ Of plural cyanos {1}
492  DF  .~.~.~.~.~.~> Preparing hexamethylene diamine


DEFINITION

Classification: 564/491

(under subclass 490) Processes wherein more than one cyano group is reduced.