US PATENT SUBCLASS 564 / 126
.~.~.~.~ Catalytic hydration only of nitrile

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}
124  DF  .~.~.~ Preparing directly from cyano containing compound {4}
126.~.~.~.~ Catalytic hydration only of nitrile {2}
127  DF  .~.~.~.~.~> Copper containing catalyst utilized
128  DF  .~.~.~.~.~> Of acrylonitriles

DEFINITION

Classification: 564/126

(under subclass 124) Processes wherein the sole chemical reaction for amide formation is the hydrolysis of a nitrile in water in the presence of a catalyst.

(1) Note. For processes including simultaneous hydrolysis and other reactions, such as for example, amination, alkylation, or reduction, see subclass 124.

(2) Note. This subclass includes the combination of hydrolysis followed by purification or recovery.