zones, and compounds which do not respond to the treatment can be regenerated by adding stronger mineral acid and a solubilizing agent such as nitrobenzene.
APPLICATIONSThe fact that carbonyl compounds ranging in properties from those of simple aliphatic to highly conjugated aromatic (cinnamaldehyde) carbonyls were easily regenerated with levulinic acid-hydrochloric acid suggests that the method should have wide general application. The regeneration of 2,3butanedione from its bishydrazone suggests that the method may be extended LITERATURE CITED
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