US PATENT SUBCLASS 564 / 397
.~.~.~.~.~ 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}
395  DF  .~.~.~ Preparing directly by amination {7}
396  DF  .~.~.~.~ Of carbonyl containing compound {1}
397.~.~.~.~.~ By reductive amination {1}
398  DF  .~.~.~.~.~.~> Group VIII noble metal containing catalyst utilized

DEFINITION

Classification: 564/397

(under subclass 396) Processes wherein an aldehyde or ketone is aminated to form an aldimine or ketimine which is then reduced to an amino nitrogen form.

(1) Note. For the purposes of this classification, this subclass has combined patents which claim the reductive amination in two distinct steps as well as those where the aldimine or ketimine formation and reduction are performed in a single step.

(2) Note. For processes which recite only the reduction of an aldimine or ketimine, see subclass 415.