Synthesis of a new spirocyclic lactam derivatives from 3-halogeno-3-trifluoroacetyl-1-methyl-2-pyrrolidinones
3-Bromo and 3-chloro-3-trifluoroacetyl-1-methyl-2-pyrrolidinones by the halogenation reaction of the corresponding 3-trifluoroacetyl derivatives. Characteristic hydrates after simple filtration on silica gel. The formation of new spirocyclic lactams.
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