| 558 / | HD | ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES |
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| * | 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} |
| 308 |  | .~.~ Processes for forming the cyano group {7} |
| 309 | DF | .~.~.~> Hetero ring containing reactant {1} |
| 311 | DF | .~.~.~> Reactant is a carboxylic acid, or an amide, anhydride, ester, halide, or salt thereof {2} |
| 314 | DF | .~.~.~> Utilizing nitryl halide, nitrosyl halide, HCH=NO- or HHNO- (wherein substitution may be made for hydrogen only; e.g., oximes, oxime esters, hydroxylamine salts, olefin-nitrosyl chloride adducts, etc.) |
| 315 | DF | .~.~.~> Reactant is an aldehyde or ketone, or a compound having carbon double bonded to nitrogen (e.g., ammoxidation of acrolein, etc.) |
| 316 | DF | .~.~.~> Reactant contains -OH bonded directly to acyclic or alicyclic carbon (wherein H of -OH may be replaced by substituted or unsubstituted ammonium, or by a Group IA or IIA light metal) |
| 317 | DF | .~.~.~> Utilizing a nitrogen oxide or an azide |
| 318 | DF | .~.~.~> Ammonia utilized {3} |