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832.1 - Compounds RCN, in which replaces H3 at the end of the main chain of an acyclic hydrocarbon are denoted by adding "-nitrile" or "-dinitrile" to the name of this hydrocarbon.
Note: "Nitrile'', here and in Rule C-832.3, denotes the triply bound nitrogen atom, , and not the carbon atom attached to it. Numbering begins with that carbon atom.
Examples to Rule C-832.1
832.2 - Compounds RCN, when considered as derived from acids R-COOH whose systematic names end in "-carboxylic acid", are named by changing this ending to "-carbonitrile".
Note: "Carbonitrile'' denotes the group , including the carbon atom contained therein. That carbon atom is excluded from the numbering of a chain to which that group is attached.
832.3 - Names of compounds RCN, when considered as derived from acids R-COOH having trivial names, are formed by changing the syllables "-oic acid" to "-onitrile", or, if the name of the acid does not end in "-oic acid", then by changing "-ic acid" to "-onitrile".
Examples to Rule C-832.2
832.4 - By the radicofunctional procedure, compounds RCN are named by stating the name of the radical R, followed by the name "cyanide" for the group -CN.
Examples to Rule C-832.3
(but see Rules C-832.1 and C-832.4)
832.5 - When the compound contains also a group that has priority over -CN for citation as principal group, the -CN group is named by the prefix "cyano-".
Examples to Rule C-832.4
(but see Rules C-832.1 and C-832.3)
See Recommendations'93 R-5.7.9
Examples to Rule C-832.5
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