US PATENT SUBCLASS 564 / 145
.~.~.~ Preparing directly by reacting sulfur or sulfur containing compound with ammonia; or directly from ammonium polysulfide

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}
123  DF  .~.~ Carboxamides (i.e., Q-CO-HNH, wherein Q is a substituent having carbon bonded directly to the carbonyl or is hydrogen and wherein any substituent replacing one or both hydrogens shown will be referred to as E) {14}
145.~.~.~ Preparing directly by reacting sulfur or sulfur containing compound with ammonia; or directly from ammonium polysulfide

DEFINITION

Classification: 564/145

(under subclass 123) Processes wherein a carboxamide is prepared by utilizing a mixture of sulfur or a sulfur

containing compound with ammonia or by utilizing an ammonium polysulfide, as for example, by the Willgerodt reaction.