US PATENT SUBCLASS 564 / 435
.~.~.~.~.~ Preparing directly by condensing a primary amine

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}
431  DF  .~.~.~ Two carbocyclic rings, at least one of which is benzene, bonded directly to the same nitrogen {2}
433  DF  .~.~.~.~ Two benzene rings bonded directly to the same nitrogen {2}
435.~.~.~.~.~ Preparing directly by condensing a primary amine

DEFINITION

Classification: 564/435

(under subclass 433) Processes wherein the compounds classified therein are produced by the condensation of a primary amine.