US PATENT SUBCLASS 564 / 261
.~.~.~.~ Preparing directly by reducing nitro group

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}
248  DF  .~.~ Containing nitrogen double bonded directly to carbon {8}
253  DF  .~.~.~ Oximes (HCH=N-OH, i.e., wherein substitution may be made for hydrogen only) {12}
261.~.~.~.~ Preparing directly by reducing nitro group

DEFINITION

Classification: 564/261

(under subclass 253) Processes wherein an oxime is produced directly by reduction of a nitro group, as for example, with hydrogen or carbon monoxide.