US PATENT SUBCLASS 564 / 472
.~.~.~.~.~ 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}
463  DF  .~.~ Acyclic {16}
469  DF  .~.~.~ Preparing directly by amination {6}
471  DF  .~.~.~.~ Of aldehyde or ketone containing compound {1}
472.~.~.~.~.~ By reductive amination {1}
473  DF  .~.~.~.~.~.~> Of aldehyde containing compound

DEFINITION

Classification: 564/472

(under subclass 471) Processes wherein the aldehyde or ketone is aminated to form an aldimine or ketimine which is then reduced to an amino nitrogen form.

(1) Note. This subclass contains patents which claim the reductive amination in two distinct steps as well as those wherein the aldimine or ketimine formation and reduction are performed in a single step.

SEE OR SEARCH THIS CLASS, SUBCLASS:

489, for processes which recite only the reduction of an aldimine or ketimine.