US PATENT SUBCLASS 558 / 342
.~.~.~ Replacing halogen with cyano

Current as of: June, 1999
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558 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {21}
303  DF  .~ Nitriles (i.e., compounds having cyano bonded directly to carbon, which carbon may be single bonded to any atom but may be multiple bonded only to carbon) {21}
332  DF  .~.~ Processes of attaching cyano to carbon by reaction of an inorganic cyanide with an organic compound (e.g., using HCN, cyanogen, metal cyanide, ammonium cyanide, cyanogen chloride, etc.) {10}
342.~.~.~ Replacing halogen with cyano {2}
343  DF  .~.~.~.~> On benzene ring
344  DF  .~.~.~.~> Organic compound of nitrogen, phosphorus, arsenic, antimony, or bismuth utilized other than as reactant (e.g., utilizing phase transfer agents, etc.)

DEFINITION

Classification: 558/342

(under subclass 332) Processes wherein cyano replaces halogen bonded directly to carbon.

(1) Note. An example of a process provided for herein is: the production of acrylonitrile by the reaction of 1,2-dichhloroethane with sodium cyanide.