US PATENT SUBCLASS 564 / 356
.~.~.~.~.~ Preparing directly by reduction, other than by reductive amination


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}
305  DF  .~.~ Benzene ring containing {24}
336  DF  .~.~.~ Amino nitrogen attached to aryl ring or ring system by an acyclic carbon or chain {11}
355  DF  .~.~.~.~ Hydroxy, bonded directly to carbon, or ether oxygen attached directly or indirectly to the acyclic carbon or chain by acyclic nonionic bonding with no amino nitrogen between the hydroxy or ether oxygen and the aryl ring or ring system (H of -OH may be replaced by a substituted or unsubstituted ammonium ion or a Group IA or IIA light metal) {5}
356.~.~.~.~.~ Preparing directly by reduction, other than by reductive amination {1}
357  DF  .~.~.~.~.~.~> By direct hydrogenation {1}


DEFINITION

Classification: 564/356

(under subclass 355) Processes wherein the compounds are prepared directly by reduction.

(1) Note. For processes of reductive amination, see the appropriate compound subclass.